/* Mobile-first CSS. Dark/light via data-theme; auto follows prefers-color-scheme. */

:root {
  /* Light theme (default) */
  --bg:           #fafafa;
  --bg-elev:     #ffffff;
  --bg-card:     #f1f3f5;
  --fg:          #1a1d22;
  --fg-muted:    #5a6270;
  --border:      #d4d8dd;
  --accent:      #3a6ea5;
  --accent-fg:   #ffffff;
  --error:       #c0392b;
  --link:        #2a5280;
}

html[data-theme="dark"], html[data-theme="auto"] {
  /* Dark: blues and greys */
  --bg:           #1a1f28;
  --bg-elev:     #232a36;
  --bg-card:     #2a3240;
  --fg:          #d5dae0;
  --fg-muted:    #8c96a3;
  --border:      #3a4452;
  --accent:      #6a9bcc;
  --accent-fg:   #0f141c;
  --error:       #e27466;
  --link:        #8ab4e0;
}

@media (prefers-color-scheme: light) {
  html[data-theme="auto"] {
    --bg:           #fafafa;
    --bg-elev:     #ffffff;
    --bg-card:     #f1f3f5;
    --fg:          #1a1d22;
    --fg-muted:    #5a6270;
    --border:      #d4d8dd;
    --accent:      #3a6ea5;
    --accent-fg:   #ffffff;
    --error:       #c0392b;
    --link:        #2a5280;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--fg);
}

nav.primary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.8rem;
  flex: 1;
}

nav.primary-nav a {
  color: var(--fg-muted);
  padding: 0.2rem 0;
}

nav.primary-nav a:hover { color: var(--fg); text-decoration: none; }

/* Hamburger toggle — hidden on wide screens, shown on narrow screens */
.nav-toggle-input { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 0.4rem 0.5rem;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  width: 2.2rem;
  height: 2.2rem;
  box-sizing: border-box;
}

.nav-toggle:hover { border-color: var(--accent); }

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: var(--fg);
  border-radius: 1px;
  margin: 0 auto;
}

.actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.theme-form select,
button {
  background: var(--bg-card);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font: inherit;
  cursor: pointer;
}

button:hover { border-color: var(--accent); }

.logout-form { margin: 0; }

main {
  padding: 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

main h1 {
  margin-top: 0;
  font-weight: 500;
  color: var(--fg);
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 1.2rem;
  border-radius: 6px;
  max-width: 28rem;
  margin: 2rem auto;
}

.card label {
  display: block;
  margin: 0.8rem 0 0.2rem;
  color: var(--fg-muted);
  font-size: 0.9rem;
}

.card input[type="text"],
.card input[type="password"] {
  width: 100%;
  background: var(--bg-card);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.5rem 0.6rem;
  border-radius: 4px;
  font: inherit;
}

.card button[type="submit"] {
  margin-top: 1rem;
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  padding: 0.5rem 1rem;
}

.error {
  color: var(--error);
  font-size: 0.9rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.tile {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 6px;
  color: var(--fg);
  display: block;
}

.tile:hover { border-color: var(--accent); text-decoration: none; }

.tile h2 {
  margin: 0 0 0.3rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
}

.tile p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 1.5rem 1rem 2rem;
  color: var(--fg-muted);
}

/* ---------- Calendar ---------- */

.cal-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.cal-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.cal-title h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 500;
}

.cal-nav, .cal-today {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  color: var(--fg);
  text-decoration: none;
}

.cal-nav:hover, .cal-today:hover {
  border-color: var(--accent);
  text-decoration: none;
}

.tz-form {
  display: flex;
  gap: 0.3rem;
  align-items: center;
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.tz-form input[type="text"] {
  background: var(--bg-card);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  font: inherit;
}

table.cal {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

table.cal th {
  text-align: left;
  padding: 0.3rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}

table.cal td.cal-cell {
  border: 1px solid var(--border);
  vertical-align: top;
  height: 6.5rem;
  padding: 0.2rem 0.3rem;
  background: var(--bg-elev);
}

td.cal-outside {
  background: var(--bg);
  color: var(--fg-muted);
}

td.cal-outside .cal-day { color: var(--fg-muted); opacity: 0.6; }

td.cal-today-cell {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.cal-day {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--fg);
  margin-bottom: 0.15rem;
}

ul.cal-events {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

li.cal-event {
  font-size: 0.75rem;
  padding: 0.1rem 0.3rem;
  border-left: 3px solid var(--event-colour, var(--accent));
  background: color-mix(in srgb, var(--event-colour, var(--accent)) 15%, var(--bg-elev));
  color: var(--fg);
  border-radius: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cal-time {
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  margin-right: 0.3rem;
}

.view-switch {
  display: flex;
  gap: 0.2rem;
}

.cal-view {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  color: var(--fg);
  text-decoration: none;
  font-size: 0.9rem;
}

.cal-view:hover { border-color: var(--accent); text-decoration: none; }

.cal-view.active {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

/* ---------- Week view ---------- */

.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.3rem;
}

.week-col {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  min-height: 12rem;
}

.week-col.week-today {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.week-col-head {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.week-col-link {
  display: flex;
  justify-content: space-between;
  color: var(--fg);
  text-decoration: none;
}

.week-col-link:hover { text-decoration: underline; }

.week-day-name {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

.week-day-num {
  font-weight: 600;
  color: var(--fg);
}

ul.week-events {
  list-style: none;
  padding: 0.3rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

li.week-event {
  font-size: 0.8rem;
  padding: 0.2rem 0.4rem;
  border-left: 3px solid var(--event-colour, var(--accent));
  background: color-mix(in srgb, var(--event-colour, var(--accent)) 15%, var(--bg-elev));
  color: var(--fg);
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.week-time {
  color: var(--fg-muted);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
}

.week-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- Day view ---------- */

ul.day-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

li.day-event {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.8rem;
  padding: 0.6rem 0.8rem;
  background: var(--bg-elev);
  border-left: 4px solid var(--event-colour, var(--accent));
  border-radius: 4px;
}

.day-time {
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.day-title {
  font-weight: 500;
  color: var(--fg);
}

.day-meta {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 0.2rem;
}

.day-project {
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 0.2rem;
  font-weight: 500;
}

.day-tags {
  margin-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.day-tag {
  font-size: 0.7rem;
  padding: 0.05rem 0.45rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  border-radius: 10px;
  letter-spacing: 0.02em;
}

.day-source {
  font-size: 0.7rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.3rem;
}

.empty {
  color: var(--fg-muted);
  font-style: italic;
  padding: 2rem 0;
  text-align: center;
}

/* ---------- Costs ---------- */

.costs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.cost-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.2rem;
}

.cost-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

.cost-header h2 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent);
}

.cost-period {
  color: var(--fg-muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.cost-summary {
  margin: 0 0 0.8rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.2rem 0.8rem;
  font-size: 0.9rem;
}

.cost-summary dt {
  color: var(--fg-muted);
}

.cost-summary dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
}

.cost-summary .cost-total {
  font-weight: 600;
  font-size: 1rem;
}

.cost-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.cost-table th,
.cost-table td {
  padding: 0.25rem 0.4rem;
  text-align: left;
}

.cost-table th {
  color: var(--fg-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cost-table tbody tr:nth-child(odd) {
  background: color-mix(in srgb, var(--bg-card) 50%, transparent);
}

.cost-table td.right,
.cost-table th.right {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.cost-note {
  color: var(--fg-muted);
  font-size: 0.85rem;
}

.cost-note code {
  background: var(--bg-card);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  font-size: 0.8rem;
}

/* ---------- Instances ---------- */

.instances-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.instances-summary {
  display: flex;
  gap: 0.4rem;
}

.pill {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--fg-muted);
  font-size: 0.8rem;
  border: 1px solid var(--border);
  text-transform: lowercase;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.pill-running {
  background: color-mix(in srgb, var(--accent) 20%, var(--bg-card));
  color: var(--accent);
  border-color: var(--accent);
}

.pill-stopped, .pill-terminated {
  opacity: 0.7;
}

.pill-pending, .pill-starting {
  background: color-mix(in srgb, #c89a6a 20%, var(--bg-card));
  color: #c89a6a;
  border-color: #c89a6a;
}

.inst-section {
  margin-bottom: 1.5rem;
}

.inst-section h2 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

table.inst-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.inst-table th {
  text-align: left;
  padding: 0.3rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

table.inst-table td {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr.inst-stopped td,
tr.inst-terminated td {
  opacity: 0.6;
}

.mono {
  font-family: monospace;
  font-size: 0.85em;
}

@media (max-width: 480px) {
  table.inst-table {
    font-size: 0.8rem;
  }
  table.inst-table th,
  table.inst-table td {
    padding: 0.25rem 0.3rem;
  }
}

/* ---------- Applications ---------- */

ul.app-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 0.8rem;
}

.app-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.8rem 1rem;
}

.app-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.2rem;
}

.app-name {
  font-weight: 500;
  color: var(--fg);
  text-decoration: none;
}

.app-name:hover { color: var(--link); }

.status-light {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  display: inline-block;
  border: 1px solid var(--border);
  flex: none;
}

.status-ok  { background: #3fb950; border-color: #3fb950; }
.status-bad { background: #e27466; border-color: #e27466; }

.app-url {
  font-size: 0.75rem;
  margin-bottom: 0.4rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-url a { color: var(--fg-muted); }

.app-meta {
  margin: 0.4rem 0 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.2rem 0.6rem;
  font-size: 0.8rem;
}

.app-meta dt { color: var(--fg-muted); }
.app-meta dd { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app-error {
  margin-top: 0.4rem;
  padding: 0.3rem 0.5rem;
  background: color-mix(in srgb, #e27466 15%, var(--bg-elev));
  border-left: 3px solid #e27466;
  color: var(--fg);
  font-size: 0.8rem;
  border-radius: 2px;
}

/* ---------- Tasks page ---------- */

.pill-bad {
  background: color-mix(in srgb, #e27466 20%, var(--bg-card));
  color: #e27466;
  border-color: #e27466;
}

.pill-warn {
  background: color-mix(in srgb, #c89a6a 20%, var(--bg-card));
  color: #c89a6a;
  border-color: #c89a6a;
}

.timew-summary {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 6px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}

.timew-bars {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.3rem;
  align-items: end;
  min-height: 8rem;
}

.timew-bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 0.2rem;
  min-height: 6rem;
}

.timew-bar {
  width: 100%;
  min-height: 2px;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  opacity: 0.85;
}

.timew-bar-label {
  font-size: 0.7rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.timew-bar-val {
  font-size: 0.7rem;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.timew-tags h3 {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

ul.timew-tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.85rem;
}

ul.timew-tag-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.timew-tag-name {
  color: var(--fg);
}

.timew-tag-val {
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

.timew-total {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  margin-top: 0.3rem;
  font-size: 0.9rem;
  color: var(--fg);
}

.timew-total span {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

ul.task-list,
ul.task-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

li.task-item {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.4rem 0.6rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-size: 0.9rem;
}

li.task-overdue {
  border-left-color: #e27466;
}

li.task-due-today {
  border-left-color: #c89a6a;
}

.task-title {
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-project {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.task-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.task-due {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

.task-due-overdue { color: #e27466; font-weight: 500; }
.task-due-today-label { color: #c89a6a; font-weight: 500; }

.task-urgency {
  font-size: 0.75rem;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  min-width: 2.2em;
  text-align: right;
}

@media (max-width: 480px) {
  .timew-summary { grid-template-columns: 1fr; }
  li.task-item { grid-template-columns: 1fr; row-gap: 0.15rem; }
  .task-urgency { display: none; }
}

/* ---------- RSS page ---------- */

ul.rss-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

li.rss-item {
  padding: 0.5rem 0.7rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
}

.rss-title {
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
}

.rss-title:hover { color: var(--link); text-decoration: underline; }

.rss-meta {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-top: 0.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}

.rss-feed { color: var(--accent); }

.rss-tags {
  margin-left: 0.3rem;
  display: inline-flex;
  gap: 0.25rem;
}

/* ---------- Issues page ---------- */

ul.issue-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

li.issue-item {
  padding: 0.5rem 0.7rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
}

li.issue-pr, li.issue-mr { border-left-color: #6ab04c; }
li.issue-issue { border-left-color: #6a9bcc; }

.issue-title {
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.issue-title:hover { text-decoration: underline; }

.issue-kind {
  font-size: 0.7rem;
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  background: var(--bg-card);
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  font-weight: 600;
}

li.issue-pr .issue-kind, li.issue-mr .issue-kind { color: #6ab04c; }
li.issue-issue .issue-kind { color: #6a9bcc; }

.issue-meta {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-top: 0.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}

.issue-repo {
  font-family: monospace;
  color: var(--fg);
}

.issue-labels {
  margin-left: 0.3rem;
  display: inline-flex;
  gap: 0.25rem;
}

/* Narrow screens: collapse the primary nav into a hamburger menu */
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  nav.primary-nav {
    display: none;
    flex-basis: 100%;
    order: 99;  /* after header row, full width */
    flex-direction: column;
    gap: 0;
    padding: 0.4rem 0;
    border-top: 1px solid var(--border);
    margin-top: 0.4rem;
  }
  nav.primary-nav a {
    padding: 0.6rem 0.4rem;
    border-bottom: 1px solid var(--border);
  }
  nav.primary-nav a:last-child { border-bottom: none; }
  .nav-toggle-input:checked ~ nav.primary-nav {
    display: flex;
  }
}

/* Small screens (Samsung A9 ~360px) */
@media (max-width: 480px) {
  header { padding: 0.5rem 0.7rem; }
  nav.primary-nav { font-size: 0.95rem; }
  main { padding: 0.8rem; }
  .card { margin: 1rem auto; padding: 1rem; }

  /* Tighter calendar for phones */
  table.cal td.cal-cell { height: 4.5rem; padding: 0.15rem 0.2rem; }
  table.cal th { font-size: 0.7rem; padding: 0.2rem 0.3rem; }
  .cal-day { font-size: 0.75rem; }
  li.cal-event { font-size: 0.65rem; padding: 0.05rem 0.2rem; }
  .cal-time { display: none; }
  .cal-title h1 { font-size: 1rem; }

  /* Week view: stack day columns vertically on phones */
  .week-grid { grid-template-columns: 1fr; }
  .week-col { min-height: auto; }

  li.day-event {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}