:root {
  --calendar-primary: #7c3aed;
  --calendar-secondary: #22d3ee;
  --calendar-tertiary: #f97316;
  --calendar-bg: #eef2ff;
  --calendar-card-bg: rgba(255, 255, 255, 0.85);
  --calendar-border: rgba(124, 58, 237, 0.18);
  --calendar-text: #1f2937;
  --calendar-muted: #64748b;
  --calendar-success: #10b981;
  --calendar-shadow: 0 40px 60px -30px rgba(79, 70, 229, 0.35);
  --calendar-radius-lg: 28px;
  --calendar-radius-md: 18px;
  --calendar-radius-sm: 12px;
  --calendar-blur: blur(26px);
}

body {
  font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  background: radial-gradient(circle at 10% 20%, rgba(76, 29, 149, 0.16), transparent 45%),
              radial-gradient(circle at 90% 10%, rgba(6, 182, 212, 0.18), transparent 44%),
              linear-gradient(135deg, #eef2ff, #f4f4ff 55%, #f9fafb);
  min-height: 100vh;
  color: var(--calendar-text);
}

.calendar-shell {
  padding: 120px 24px 80px;
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.calendar-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  align-items: center;
  background: var(--calendar-card-bg);
  backdrop-filter: var(--calendar-blur);
  -webkit-backdrop-filter: var(--calendar-blur);
  border-radius: var(--calendar-radius-lg);
  border: 1px solid var(--calendar-border);
  padding: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--calendar-shadow);
}

.hero-visual {
  position: relative;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual img {
  max-width: 280px;
  filter: drop-shadow(0 20px 40px rgba(15, 23, 42, 0.12));
}

.hero-glow {
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.26), transparent 70%);
  z-index: -1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.16), rgba(34, 211, 238, 0.22));
  color: var(--calendar-primary);
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.calendar-hero h1 {
  margin: 16px 0 12px;
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-weight: 800;
}

.hero-lead {
  margin: 0 0 28px;
  font-size: 1.03rem;
  line-height: 1.7;
  color: var(--calendar-muted);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.stat-card {
  flex: 1 1 160px;
  min-width: 160px;
  background: linear-gradient(140deg, rgba(124, 58, 237, 0.15), rgba(255, 255, 255, 0.7));

/* Subtle teaser glow for header clock when Season Pulse is near */
#header-clock-pill.season-pulse-soon {
  box-shadow: 0 0 0 0 rgba(124,58,237,0.0), 0 0 0 0 rgba(16,185,129,0.0);
  animation: pulseGlow 2.4s ease-in-out infinite;
}
@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(124,58,237,0.0), 0 0 0 0 rgba(16,185,129,0.0); }
  50% { box-shadow: 0 0 0 6px rgba(124,58,237,0.08), 0 0 40px -10px rgba(124,58,237,0.35); }
  100% { box-shadow: 0 0 0 0 rgba(124,58,237,0.0), 0 0 0 0 rgba(16,185,129,0.0); }
}
  border-radius: var(--calendar-radius-md);
  padding: 18px;
  display: flex;
  gap: 16px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 18px 30px -20px rgba(30, 64, 175, 0.4);
}

.stat-card--toggle {
  align-items: flex-start;
}

.stat-card--easy .stat-value {
  font-size: 1.3rem;
  letter-spacing: 0.05em;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--calendar-primary), #a855f7);
  color: #fff;
  font-size: 1.2rem;
}

.stat-meta { display: flex; flex-direction: column; gap: 4px; }
.stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(15, 23, 42, 0.5);
}
.stat-value {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--calendar-text);
}
.stat-note,
.mode-toggle-hint {
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(15, 23, 42, 0.55);
  letter-spacing: 0.03em;
}

.mode-toggle-btn {
  border: none;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: #fff;
  background: linear-gradient(135deg, var(--calendar-primary), #a855f7);
  cursor: pointer;
  box-shadow: 0 14px 30px -16px rgba(76, 29, 149, 0.8);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.mode-toggle-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 34px -14px rgba(76, 29, 149, 0.85);
}

.mode-toggle-btn.is-active {
  background: linear-gradient(135deg, #0ea5e9, #22d3ee);
  box-shadow: 0 16px 36px -14px rgba(14, 165, 233, 0.55);
}

.stat-card--easy[hidden] {
  display: none;
}

.calendar-main {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(280px, 2fr);
  gap: 32px;
  align-items: start;
}

.calendar-widget {
  background: var(--calendar-card-bg);
  border-radius: var(--calendar-radius-lg);
  border: 1px solid var(--calendar-border);
  padding: 28px;
  box-shadow: var(--calendar-shadow);
  backdrop-filter: var(--calendar-blur);
  -webkit-backdrop-filter: var(--calendar-blur);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.calendar-title h2 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 800;
}

.calendar-title p {
  margin: 4px 0 0;
  color: var(--calendar-muted);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.calendar-nav {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 0;
  background: rgba(124, 58, 237, 0.12);
  color: var(--calendar-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.calendar-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px -16px rgba(79, 70, 229, 0.45);
}

.calendar-grid {
  --calendar-grid-columns: 7;
  display: grid;
  grid-template-columns: repeat(var(--calendar-grid-columns), 1fr);
  gap: 12px;
}

.calendar-grid.is-easy {
  gap: 8px;
}

.calendar-weekdays {
  display: contents;
}

.calendar-weekday {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: rgba(15, 23, 42, 0.55);
  text-align: center;
}

.calendar-days {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(var(--calendar-grid-columns), 1fr);
  gap: 12px;
}

.calendar-grid.is-easy .calendar-days {
  gap: 8px;
}

.calendar-day {
  min-height: 110px;
  border-radius: var(--calendar-radius-md);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(124, 58, 237, 0.12);
  padding: 14px 12px 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  cursor: pointer;
  color: inherit;
  text-align: left;
  outline: none;
}

.calendar-day:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 32px -20px rgba(79, 70, 229, 0.45);
  border-color: rgba(124, 58, 237, 0.35);
}

.calendar-day.is-today {
  border: 2px solid var(--calendar-secondary);
  box-shadow: 0 12px 28px -18px rgba(34, 211, 238, 0.6);
}

.calendar-day.is-selected {
  border: 2px solid var(--calendar-primary);
  box-shadow: 0 16px 32px -18px rgba(124, 58, 237, 0.6);
}

.calendar-day.is-other-month { opacity: 0.45; cursor: pointer; }

.calendar-day-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  color: var(--calendar-text);
}

.calendar-day-header .calendar-day-meta {
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(51, 65, 85, 0.65);
}

.calendar-day-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.calendar-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  background: rgba(124, 58, 237, 0.12);
  color: var(--calendar-primary);
  white-space: nowrap;
}

.calendar-chip.season { background: rgba(16, 185, 129, 0.16); color: var(--calendar-success); }
.calendar-chip.global { background: rgba(234, 179, 8, 0.18); color: #b45309; }
.calendar-chip.personal { background: rgba(59, 130, 246, 0.16); color: #2563eb; }
.calendar-chip.celebration { background: rgba(249, 115, 22, 0.2); color: #ea580c; }
.calendar-chip.grow { background: rgba(52, 211, 153, 0.18); color: #0f766e; }
.calendar-chip.reminder { background: rgba(147, 197, 253, 0.2); color: #1d4ed8; }

.calendar-day-empty { color: rgba(100, 116, 139, 0.6); font-weight: 500; }

.calendar-legend {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  font-size: 0.85rem;
  color: var(--calendar-muted);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.legend-dot.global { background: rgba(234, 179, 8, 0.8); }
.legend-dot.season { background: rgba(16, 185, 129, 0.8); }
.legend-dot.personal { background: rgba(59, 130, 246, 0.85); }

.calendar-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: rgba(255, 255, 255, 0.86);
  border-radius: var(--calendar-radius-lg);
  border: 1px solid var(--calendar-border);
  padding: 24px;
  backdrop-filter: var(--calendar-blur);
  -webkit-backdrop-filter: var(--calendar-blur);
  box-shadow: 0 24px 46px -28px rgba(79, 70, 229, 0.42);
}

.sidebar-card h3 {
  margin: 0 0 16px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.upcoming-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.upcoming-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--calendar-radius-md);
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.14);
}

.upcoming-item .meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.upcoming-item .title { font-weight: 700; }
.upcoming-item .time { font-size: 0.82rem; color: var(--calendar-muted); }

.upcoming-item .badge {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 10px;
  border-radius: 999px;
  align-self: center;
  background: rgba(59, 130, 246, 0.16);
  color: #1d4ed8;
  font-weight: 700;
}

.day-events {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.day-event-card {
  border-radius: var(--calendar-radius-md);
  padding: 16px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.26);
  display: grid;
  gap: 6px;
}

.day-event-card .event-meta {
  font-size: 0.78rem;
  color: var(--calendar-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.day-event-card .event-title { font-weight: 700; }
.day-event-card .event-notes { font-size: 0.9rem; color: var(--calendar-muted); }
.day-event-card .event-actions { display: flex; gap: 10px; }

.event-remove {
  border: 0;
  background: rgba(248, 113, 113, 0.16);
  color: #dc2626;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.78rem;
}

.event-remove:hover {
  background: rgba(248, 113, 113, 0.28);
}

.knowledge-cards {
  display: grid;
  gap: 14px;
}

.knowledge-card {
  padding: 16px;
  border-radius: var(--calendar-radius-md);
  background: linear-gradient(125deg, rgba(16, 185, 129, 0.12), rgba(124, 58, 237, 0.12));
  border: 1px solid rgba(16, 185, 129, 0.18);
  display: grid;
  gap: 6px;
}

.knowledge-card strong { font-size: 0.92rem; }
.knowledge-card span { color: var(--calendar-muted); font-size: 0.88rem; }

.calendar-fab {
  position: fixed;
  right: 32px;
  bottom: 32px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--calendar-primary), #a855f7);
  color: #fff;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 28px 50px -20px rgba(124, 58, 237, 0.5);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  z-index: 1300;
}

.calendar-fab:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 34px 60px -22px rgba(124, 58, 237, 0.65);
}

.calendar-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 32px 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
  z-index: 1500;
}

.calendar-modal.active {
  opacity: 1;
  visibility: visible;
}

.calendar-modal-content {
  position: relative;
  max-width: 440px;
  width: 100%;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--calendar-radius-lg);
  border: 1px solid rgba(124, 58, 237, 0.18);
  padding: 32px;
  display: grid;
  gap: 18px;
  box-shadow: 0 30px 60px -28px rgba(79, 70, 229, 0.4);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: 0;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--calendar-muted);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  padding: 12px 14px;
  font: inherit;
  background: rgba(255, 255, 255, 0.95);
}

.form-group.flexible { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; }

.modal-submit {
  border: 0;
  border-radius: 999px;
  padding: 14px 18px;
  background: linear-gradient(135deg, var(--calendar-primary), #c084fc);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.modal-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 42px -20px rgba(124, 58, 237, 0.55);
}

.empty-state {
  padding: 16px;
  border-radius: var(--calendar-radius-md);
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.18);
  color: var(--calendar-muted);
  font-weight: 500;
}

@media (max-width: 1024px) {
  .calendar-shell { padding: 108px 18px 72px; }
  .calendar-main { grid-template-columns: 1fr; }
  .calendar-sidebar { flex-direction: row; flex-wrap: wrap; }
  .sidebar-card { flex: 1 1 320px; }
}

@media (max-width: 768px) {
  .calendar-hero { padding: 32px; }
  .calendar-days { gap: 8px; }
  .calendar-day { min-height: 96px; padding: 10px; }
  .calendar-fab { right: 18px; bottom: 22px; }
}

@media (max-width: 580px) {
  .calendar-shell { padding: 96px 14px 60px; }
  .calendar-hero { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; }
  .calendar-grid { gap: 8px; }
  .calendar-day { min-height: 86px; }
  .calendar-modal-content { padding: 24px; }
}