:root,
[data-theme="dark"] {
  --bg: #050505;
  --bg-soft: #0c0c0c;
  --fg: #f2f2f0;
  --muted: #8a8a84;
  --line: rgba(242, 242, 240, 0.12);
  --accent: #c8f542;
  --danger: #ff6b6b;
  --input-bg: #141414;
  --input-fg: #f2f2f0;
  --card-bg: rgba(255, 255, 255, 0.03);
  --modal-bg: #0d0d0d;
  --menu-bg: #0d0d0d;
  --header-bg: transparent;
  --font-display: "Syne", sans-serif;
  --font-body: "Outfit", sans-serif;
}

[data-theme="light"] {
  --bg: #f4f4f1;
  --bg-soft: #ffffff;
  --fg: #161614;
  --muted: #6b6b66;
  --line: rgba(22, 22, 20, 0.12);
  --accent: #5a8f00;
  --danger: #d64545;
  --input-bg: #ffffff;
  --input-fg: #161614;
  --card-bg: #ffffff;
  --modal-bg: #ffffff;
  --menu-bg: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.72);
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--fg);
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(127, 127, 127, 0.06), transparent 50%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

input,
textarea,
select {
  color: var(--input-fg);
  background: var(--input-bg);
  caret-color: var(--input-fg);
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 1;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(10px);
}

.header-end {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-self: end;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  height: 2.1rem;
  padding: 0 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--fg);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.theme-toggle:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.logo {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
}

.logo img {
  width: 100%;
  height: 100%;
  display: block;
}

[data-theme="light"] .logo img {
  filter: invert(1);
}

.nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(0.85rem, 2.5vw, 2rem);
}

.nav a,
.nav-dropdown > summary {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav a:hover,
.nav-dropdown > summary:hover,
.nav-dropdown > summary[aria-current="page"] {
  color: var(--fg);
}

.nav > a[aria-current="page"],
.nav-dropdown > summary[aria-current="page"] {
  color: var(--fg);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown > summary {
  list-style: none;
  cursor: pointer;
}

.nav-dropdown > summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown > summary::after {
  content: "";
  display: inline-block;
  margin-left: 0.35rem;
  border-left: 3.5px solid transparent;
  border-right: 3.5px solid transparent;
  border-top: 4.5px solid currentColor;
  vertical-align: middle;
  opacity: 0.7;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.65rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 13.5rem;
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--modal-bg);
  z-index: 40;
  display: grid;
  gap: 0.15rem;
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.65rem 0.8rem;
  border-radius: 0.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  box-shadow: none !important;
  text-decoration: none !important;
}

.nav-dropdown-menu a:hover {
  color: var(--fg);
  background: color-mix(in srgb, var(--fg) 6%, transparent);
}

.nav-dropdown-menu a[aria-current="page"] {
  color: var(--accent);
  background: color-mix(in srgb, var(--fg) 6%, transparent);
  box-shadow: none !important;
  text-decoration: none !important;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.lang-switch a,
.lang-switch .lang-btn {
  color: var(--muted);
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  letter-spacing: inherit;
}

.lang-switch a:hover,
.lang-switch .lang-btn:hover {
  color: var(--fg);
}

.lang-switch a[aria-current="true"],
.lang-switch .lang-btn[aria-current="true"] {
  color: var(--accent);
}

.lang-sep {
  color: var(--line);
}

main {
  flex: 1;
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1rem, 3vw, 2rem);
}

.landing {
  max-width: 28rem;
  margin: 4vh auto 0;
  text-align: center;
  padding-bottom: 3rem;
}

.landing h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.05em;
}

.landing > p {
  margin: 0.85rem 0 1.75rem;
  color: var(--muted);
  line-height: 1.5;
}

.landing-section-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
}

.landing-section-lead {
  margin: 0 0 0.35rem !important;
  font-size: 0.88rem;
  color: var(--muted);
  text-align: left;
  line-height: 1.4;
}

.landing-divider {
  height: 1px;
  margin: 1.75rem 0;
  background: var(--line);
}

.landing-form {
  display: grid;
  gap: 0.85rem;
}

.landing-form input {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--input-fg);
  outline: none;
}

.landing-form input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  transform: translateY(-1px);
}

.btn-primary {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--fg);
}

.btn-danger {
  border-color: rgba(255, 107, 107, 0.45);
  color: #ffb4b4;
}

.btn-danger:hover {
  background: rgba(255, 107, 107, 0.12);
  border-color: rgba(255, 107, 107, 0.7);
}

.btn-icon {
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border-radius: 0.6rem;
}

.board-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.board-top h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.board-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: start;
}

.column {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--card-bg);
  min-height: 18rem;
  display: flex;
  flex-direction: column;
}

.column-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.9rem 1rem 0.65rem;
  border-bottom: 1px solid var(--line);
}

.column-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.column-cards {
  display: grid;
  gap: 0.65rem;
  padding: 0.85rem;
  flex: 1;
}

.card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.75rem;
  background: var(--bg-soft);
  display: grid;
  gap: 0.55rem;
}

.card.own {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

.card[draggable="true"] {
  cursor: grab;
}

.card.dragging {
  opacity: 0.45;
}

.column-cards.drag-over {
  outline: 1px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 2px;
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.room-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--fg);
}

.card.hidden-card .card-body {
  font-style: italic;
  color: var(--muted);
}

.card-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.4;
  font-size: 0.92rem;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.vote-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}

.vote-btn.active {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
}

.vote-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.card-actions {
  display: flex;
  gap: 0.35rem;
}

.card-actions button {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  padding: 0.15rem 0.25rem;
}

.card-actions button:hover {
  color: var(--fg);
}

.add-card {
  display: grid;
  gap: 0.5rem;
  padding: 0 0.85rem 0.85rem;
}

.add-card textarea,
.edit-area {
  width: 100%;
  min-height: 4.2rem;
  resize: vertical;
  padding: 0.65rem 0.75rem;
  border-radius: 0.65rem;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--input-fg);
  caret-color: var(--input-fg);
  outline: none;
}

.add-card textarea:focus,
.edit-area:focus {
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
}

.toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--modal-bg);
  color: var(--fg);
  font-size: 0.85rem;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.toast.show {
  opacity: 1;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 80;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  width: min(28rem, 100%);
  max-height: min(85vh, 40rem);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--modal-bg);
  padding: 1.25rem;
}

.modal h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.modal h3 {
  margin: 1.25rem 0 0.65rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.field {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.field label {
  font-size: 0.85rem;
  color: var(--muted);
}

.field input,
.field select {
  padding: 0.65rem 0.75rem;
  border-radius: 0.6rem;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--input-fg);
}

.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.field-row label {
  font-size: 0.9rem;
}

.switch {
  appearance: none;
  width: 2.4rem;
  height: 1.3rem;
  border-radius: 999px;
  background: #2a2a2a;
  border: 1px solid var(--line);
  position: relative;
  cursor: pointer;
}

.switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 50%;
  background: #777;
  transition: transform 0.2s ease, background 0.2s ease;
}

.switch:checked {
  background: rgba(200, 245, 66, 0.25);
  border-color: rgba(200, 245, 66, 0.45);
}

.switch:checked::after {
  transform: translateX(1.05rem);
  background: var(--accent);
}

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

.danger-zone {
  border: 1px solid rgba(255, 107, 107, 0.25);
  border-radius: 0.75rem;
  padding: 0.85rem;
  display: grid;
  gap: 0.5rem;
}

.error-text {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0.35rem 0 0;
}

.empty-hint {
  color: var(--muted);
  font-size: 0.85rem;
  padding: 0.25rem 0.15rem;
}

.admin-wrap {
  width: min(64rem, 100%);
  margin: 0 auto;
}

.admin-login {
  margin-top: 8vh;
}

.admin-panel h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.04em;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 1rem;
}

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

.admin-table th,
.admin-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.admin-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

.admin-table a {
  color: var(--accent);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

/* —— Scrum Poker —— */
.poker-layout {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 3rem;
  display: grid;
  gap: 1.25rem;
}

.poker-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.poker-top h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.poker-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.35rem 0 0;
}

.poker-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.poker-panel {
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.1rem 1.2rem;
  background: color-mix(in srgb, var(--fg) 2.5%, transparent);
}

.poker-panel h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.poker-panel p.hint {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.task-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.task-table-wrap {
  overflow: auto;
  max-height: 22rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
}

.task-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.task-table th,
.task-table td {
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.task-table th {
  position: sticky;
  top: 0;
  background: var(--modal-bg);
  color: var(--muted);
  font-weight: 600;
  z-index: 1;
}

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

.task-table input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--accent);
}

.deck-input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--input-bg);
  color: var(--input-fg);
  outline: none;
}

.deck-input:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.participant-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.participant-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

.participant-chip.voted {
  color: var(--fg);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

.participant-chip .dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--muted);
}

.participant-chip.voted .dot {
  background: var(--accent);
}

.slide-card {
  text-align: center;
  padding: 1.75rem 1.25rem;
}

.slide-key {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin: 0 0 0.5rem;
}

.slide-summary {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  margin: 0 0 1rem;
  line-height: 1.25;
}

.slide-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.deck-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.25rem;
}

.deck-card {
  min-width: 3.4rem;
  min-height: 4.2rem;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--input-bg);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.deck-card:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  transform: translateY(-2px);
}

.deck-card.selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--fg);
}

.deck-card:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.round-results {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.75rem;
  justify-items: center;
}

.round-avg {
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.vote-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
}

.vote-chip {
  padding: 0.35rem 0.65rem;
  border-radius: 0.5rem;
  border: 1px solid var(--line);
  font-size: 0.85rem;
}

.join-form {
  display: grid;
  gap: 0.85rem;
  max-width: 22rem;
  margin: 0.5rem auto 0;
}

.summary-table .avg {
  font-weight: 700;
  color: var(--accent);
}

.file-picker-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.file-picker {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}

.file-picker-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-picker-trigger {
  pointer-events: none;
}

.file-picker-name {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: min(16rem, 50vw);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-state {
  width: min(32rem, 100%);
  margin: 4rem auto;
  text-align: center;
  padding: 0 1rem;
}

.empty-eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.empty-state h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  letter-spacing: -0.04em;
}

.empty-state p {
  margin: 0.85rem 0 1.5rem;
  color: var(--muted);
  line-height: 1.5;
}

.admin-tabs {
  display: flex;
  gap: 0.4rem;
  margin: 0 0 1rem;
}

.admin-tabs button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 0.55rem;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}

.admin-tabs button[aria-selected="true"] {
  color: var(--fg);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

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

@media (max-width: 560px) {
  .site-header {
    padding-inline: 1rem;
    gap: 0.5rem;
  }

  .nav {
    gap: 0.55rem;
  }

  .nav a,
  .nav-dropdown > summary {
    font-size: 0.72rem;
  }

  .nav-dropdown-menu {
    left: auto;
    right: 0;
    transform: none;
  }
}