:root {
  --ink: var(--platform-text, #e8eaef);
  --muted: var(--platform-text-muted, #94a3b8);
  --line: var(--platform-border, #2a3140);
  --paper: var(--platform-bg, #0b0d12);
  --panel: var(--platform-surface, #161a22);
  --accent: var(--platform-accent, #ea580c);
  --accent-soft: var(--platform-accent-soft, rgba(234, 88, 12, 0.14));
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 14px;
  --event-coral: #f43f5e;
  --event-amber: #f59e0b;
  --event-sky: #38bdf8;
  --event-mint: #34d399;
  --event-violet: #a78bfa;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse 65% 40% at 90% -10%, rgba(234, 88, 12, 0.16), transparent 55%),
    radial-gradient(ellipse 45% 35% at 0% 100%, rgba(56, 189, 248, 0.07), transparent 50%),
    linear-gradient(168deg, #100d0b 0%, var(--paper) 48%, #0c1014 100%);
  background-attachment: fixed;
}

.cal-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.cal-intro {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  margin-bottom: 1.25rem;
}

.cal-intro h1 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  letter-spacing: -0.03em;
  font-weight: 700;
}

.cal-intro p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  max-width: 42ch;
  line-height: 1.45;
}

.cal-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.cal-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.cal-month-label {
  min-width: 11.5rem;
  text-align: center;
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.cal-views {
  display: inline-flex;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 23, 31, 0.65);
}

.cal-views button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}

.cal-views button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--ink);
}

.cal-spacer {
  flex: 1;
  min-width: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(18, 23, 31, 0.7);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.btn.primary:hover {
  background: var(--platform-accent-hover, #c2410c);
}

.btn.ghost {
  background: transparent;
}

.btn.icon {
  width: 2.35rem;
  height: 2.35rem;
  padding: 0;
}

.btn.danger {
  border-color: rgba(244, 63, 94, 0.45);
  color: #fda4af;
}

.cal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
  gap: 1rem;
  align-items: start;
}

.cal-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 23, 31, 0.72);
  backdrop-filter: blur(8px);
  overflow: hidden;
}

.cal-weekdays,
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.cal-weekdays {
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
}

.cal-weekdays span {
  padding: 0.65rem 0.35rem;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.cal-grid {
  min-height: 32rem;
}

.cal-cell {
  min-height: 6.4rem;
  border-right: 1px solid rgba(42, 49, 64, 0.7);
  border-bottom: 1px solid rgba(42, 49, 64, 0.7);
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  cursor: pointer;
  transition: background 0.12s ease;
}

.cal-cell:nth-child(7n) {
  border-right: 0;
}

.cal-cell:hover {
  background: rgba(234, 88, 12, 0.06);
}

.cal-cell.outside {
  opacity: 0.42;
}

.cal-cell.today {
  background: var(--accent-soft);
}

.cal-cell.selected {
  outline: 1px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: -1px;
}

.cal-daynum {
  align-self: flex-start;
  min-width: 1.6rem;
  height: 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.cal-cell.today .cal-daynum {
  background: var(--accent);
  color: #fff;
}

.cal-events {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  min-height: 0;
  overflow: hidden;
}

.cal-chip {
  border: 0;
  border-left: 3px solid var(--chip, var(--accent));
  border-radius: 5px;
  background: color-mix(in srgb, var(--chip, var(--accent)) 18%, transparent);
  color: var(--ink);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  text-align: left;
  padding: 0.18rem 0.35rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-more {
  font-size: 0.7rem;
  color: var(--muted);
  padding-left: 0.2rem;
}

.cal-side {
  display: grid;
  gap: 1rem;
}

.side-card {
  padding: 1rem 1.05rem 1.1rem;
}

.side-card h2 {
  margin: 0 0 0.2rem;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.side-card .side-sub {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.agenda-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  max-height: 22rem;
  overflow: auto;
}

.agenda-item {
  display: grid;
  gap: 0.15rem;
  padding: 0.65rem 0.7rem;
  border-radius: 10px;
  border: 1px solid rgba(42, 49, 64, 0.85);
  border-left: 3px solid var(--chip, var(--accent));
  background: rgba(0, 0, 0, 0.18);
  cursor: pointer;
}

.agenda-item:hover {
  border-color: color-mix(in srgb, var(--chip, var(--accent)) 50%, var(--line));
}

.agenda-title {
  font-weight: 650;
  font-size: 0.92rem;
}

.agenda-meta {
  color: var(--muted);
  font-size: 0.78rem;
}

.agenda-empty {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.week-view {
  display: grid;
  grid-template-columns: 3.5rem repeat(7, minmax(0, 1fr));
  min-height: 32rem;
}

.week-hours {
  display: grid;
  grid-template-rows: 2rem repeat(12, minmax(2.4rem, 1fr));
  border-right: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.15);
}

.week-hours span {
  font-size: 0.68rem;
  color: var(--muted);
  font-family: var(--mono);
  padding: 0.2rem 0.35rem 0 0;
  text-align: right;
}

.week-col {
  display: grid;
  grid-template-rows: 2rem repeat(12, minmax(2.4rem, 1fr));
  border-right: 1px solid rgba(42, 49, 64, 0.65);
  min-width: 0;
}

.week-col:last-child {
  border-right: 0;
}

.week-col-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.week-col-head.today {
  color: var(--accent);
  background: var(--accent-soft);
}

.week-slot {
  border-bottom: 1px solid rgba(42, 49, 64, 0.45);
  padding: 0.15rem;
  cursor: pointer;
}

.week-slot:hover {
  background: rgba(234, 88, 12, 0.05);
}

.agenda-view {
  padding: 0.85rem;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(5, 7, 10, 0.72);
  backdrop-filter: blur(4px);
}

.modal[hidden] {
  display: none;
}

.modal-card {
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #141820;
  padding: 1.15rem 1.2rem 1.25rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.modal-card h2 {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.form-grid {
  display: grid;
  gap: 0.75rem;
}

.form-grid label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-grid input,
.form-grid textarea,
.form-grid select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0f131a;
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: normal;
  text-transform: none;
  padding: 0.65rem 0.75rem;
}

.form-grid textarea {
  min-height: 4.5rem;
  resize: vertical;
  line-height: 1.4;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
}

.check-row input {
  width: auto;
}

.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.color-swatch {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}

.color-swatch[aria-pressed="true"] {
  border-color: #fff;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.15);
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.modal-actions .grow {
  flex: 1;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 50;
  background: #1a2230;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.toast[hidden] {
  display: none;
}

@media (max-width: 900px) {
  .cal-layout {
    grid-template-columns: 1fr;
  }

  .cal-grid {
    min-height: 0;
  }

  .cal-cell {
    min-height: 4.6rem;
  }

  .week-view {
    overflow-x: auto;
    min-width: 100%;
  }

  .week-col {
    min-width: 4.5rem;
  }
}

@media (max-width: 560px) {
  .cal-shell {
    width: min(100% - 1rem, 1180px);
  }

  .cal-chip {
    font-size: 0;
    min-height: 0.45rem;
    padding: 0;
    border-left-width: 0;
    border-radius: 3px;
  }

  .cal-chip::before {
    content: "";
  }

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

  .cal-month-label {
    min-width: 9rem;
    font-size: 0.95rem;
  }
}