:root {
  --bg: #091218;
  --bg-alt: #10212a;
  --panel: rgba(8, 19, 26, 0.9);
  --panel-soft: rgba(17, 35, 45, 0.92);
  --panel-border: rgba(118, 174, 194, 0.22);
  --text: #edf8fb;
  --muted: #98b5bf;
  --accent: #48d5ff;
  --accent-strong: #ffd166;
  --danger: #ff7b72;
  --success: #7be495;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(72, 213, 255, 0.15), transparent 34%),
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.1), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, #050b0f 100%);
  color: var(--text);
  font-family: "Bahnschrift", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

button,
select,
input {
  border: 1px solid var(--panel-border);
  border-radius: 0.85rem;
  font: inherit;
}

button,
select {
  background: linear-gradient(180deg, #27414f 0%, #15232d 100%);
  color: var(--text);
}

button {
  cursor: pointer;
  padding: 0.8rem 1rem;
}

input,
select {
  width: 100%;
  padding: 0.8rem 0.95rem;
  color: var(--text);
  background: rgba(6, 15, 20, 0.92);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.hidden {
  display: none !important;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
}

.lobby-shell {
  width: min(1180px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 2rem;
  display: grid;
  gap: 1rem;
}

.hero-panel,
.action-panel,
.list-panel,
.tower-panel,
.hud-panel,
.inventory-panel {
  padding: 1.2rem;
}

.hero-panel {
  display: grid;
  gap: 1rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(360px, 1.2fr);
  gap: 1rem;
  align-items: start;
}

.hero-copy,
.account-manager {
  display: grid;
  gap: 1rem;
  align-content: start;
  min-width: 0;
}

.hero-title {
  max-width: 100%;
  font-size: clamp(2.15rem, 4vw, 3.45rem);
  letter-spacing: clamp(0.015em, 0.22vw, 0.045em);
  line-height: 0.98;
  text-transform: uppercase;
  overflow-wrap: anywhere;
  word-break: break-word;
  color: #f2fbff;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero-title {
    background: linear-gradient(
      90deg,
      #79d5ff 0%,
      #b8efff 18%,
      #ffd86e 38%,
      #bf8b4e 58%,
      #ff8f68 78%,
      #b9a7ff 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    text-shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
  }
}

.hero-copy {
  padding: 1.4rem;
  border-radius: 1.15rem;
  background:
    radial-gradient(circle at top left, rgba(72, 213, 255, 0.16), transparent 38%),
    linear-gradient(180deg, rgba(17, 35, 45, 0.94), rgba(8, 18, 24, 0.96));
  border: 1px solid rgba(118, 174, 194, 0.16);
}

.account-manager {
  padding: 1.4rem;
  border-radius: 1.15rem;
  background:
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.14), transparent 30%),
    linear-gradient(180deg, rgba(17, 35, 45, 0.94), rgba(8, 18, 24, 0.96));
  border: 1px solid rgba(118, 174, 194, 0.16);
}

.account-manager-actions,
.account-item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.account-manager-head {
  align-items: flex-start;
}

.account-manager-head .eyebrow {
  margin-bottom: 0.25rem;
}

.account-summary-card,
.account-item {
  background:
    linear-gradient(180deg, rgba(19, 36, 45, 0.94), rgba(10, 20, 26, 0.96)),
    var(--panel-soft);
}

.account-summary-card {
  display: grid;
  gap: 0.8rem;
}

.account-summary-top,
.account-item-head,
.account-summary-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.account-summary-meta {
  flex-wrap: wrap;
}

.account-summary-id,
.account-item-id,
.account-item-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.account-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}

.account-switch-list {
  max-height: min(60vh, 34rem);
  overflow: auto;
  padding-right: 0.15rem;
}

.account-item {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(118, 174, 194, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.account-item.is-active {
  border-color: rgba(72, 213, 255, 0.52);
  box-shadow: 0 0 0 1px rgba(72, 213, 255, 0.18), 0 18px 48px rgba(0, 0, 0, 0.22);
}

.account-item p,
.account-summary-card p {
  margin: 0;
}

.account-stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.account-stat {
  padding: 0.75rem 0.8rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(118, 174, 194, 0.12);
  background: rgba(8, 18, 24, 0.76);
}

.account-stat strong,
.account-item-head strong {
  display: block;
}

.account-stat span,
.account-empty-state,
.unlock-state {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.account-empty-state {
  padding: 1rem;
  border-radius: 1rem;
  border: 1px dashed rgba(118, 174, 194, 0.2);
  background: rgba(8, 18, 24, 0.66);
  line-height: 1.6;
}

.subtle-button {
  background: linear-gradient(180deg, rgba(39, 65, 79, 0.8), rgba(17, 29, 38, 0.92));
}

.danger-button {
  background: linear-gradient(180deg, rgba(91, 37, 39, 0.95), rgba(42, 12, 16, 0.98));
  border-color: rgba(255, 123, 114, 0.32);
}

.unlocks-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
}

.unlocks-button[data-has-new-unlocks="true"]::after {
  content: "(New!)";
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(3, 8, 12, 0.72);
  backdrop-filter: blur(10px);
}

.modal-panel {
  width: min(920px, calc(100vw - 1rem));
  max-height: calc(100vh - 2rem);
  overflow: auto;
}

.account-switch-modal,
.account-create-modal {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
}

.account-create-modal {
  width: min(520px, calc(100vw - 1rem));
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.modal-actions button {
  flex: 1 1 180px;
}

.unlocks-modal {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
}

.game-over-modal {
  width: min(520px, calc(100vw - 1rem));
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  background:
    radial-gradient(circle at top, rgba(255, 123, 114, 0.12), transparent 42%),
    linear-gradient(180deg, rgba(24, 14, 18, 0.98), rgba(10, 14, 20, 0.98));
}

.game-over-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.game-over-actions button {
  flex: 1 1 180px;
}

.unlock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.85rem;
}

.unlock-tile,
.unlock-empty {
  min-height: 170px;
  padding: 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(118, 174, 194, 0.14);
  background:
    linear-gradient(180deg, rgba(19, 36, 45, 0.94), rgba(10, 20, 26, 0.96)),
    var(--panel-soft);
}

.unlock-tile,
.inventory-item[data-has-tooltip="true"] {
  position: relative;
  --unlock-tooltip-shift-x: 0px;
  --unlock-tooltip-max-width: min(240px, calc(100vw - 2rem));
}

.unlock-tile {
  display: grid;
  gap: 0.7rem;
  align-content: start;
  cursor: help;
}

.unlock-tile.is-locked {
  border-style: dashed;
}

.unlock-tile.is-new {
  border-color: rgba(255, 209, 102, 0.68);
  background:
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.22), transparent 42%),
    linear-gradient(180deg, rgba(48, 39, 18, 0.96), rgba(17, 20, 12, 0.98));
  box-shadow: 0 0 0 1px rgba(255, 209, 102, 0.18), 0 18px 38px rgba(0, 0, 0, 0.28);
}

.unlock-tooltip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.7rem);
  width: max-content;
  max-width: var(--unlock-tooltip-max-width);
  padding: 0.65rem 0.8rem;
  border-radius: 0.8rem;
  background: rgba(8, 15, 20, 0.96);
  border: 1px solid rgba(118, 174, 194, 0.22);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  color: #f4fbff;
  font-size: 0.82rem;
  line-height: 1.45;
  text-align: left;
  white-space: normal;
  opacity: 0;
  pointer-events: none;
  transform: translate(calc(-50% + var(--unlock-tooltip-shift-x)), 0.35rem);
  transition: opacity 120ms ease-out, transform 120ms ease-out;
  z-index: 8;
}

.unlock-tooltip::before {
  content: "";
  position: absolute;
  top: 100%;
  left: clamp(1rem, calc(50% - var(--unlock-tooltip-shift-x)), calc(100% - 1rem));
  transform: translateX(-50%);
  border-width: 0.45rem 0.45rem 0;
  border-style: solid;
  border-color: rgba(8, 15, 20, 0.96) transparent transparent;
}

.unlock-tile[data-tooltip-placement="below"] .unlock-tooltip,
.inventory-item[data-tooltip-placement="below"] .unlock-tooltip {
  top: calc(100% + 0.7rem);
  bottom: auto;
  transform: translate(calc(-50% + var(--unlock-tooltip-shift-x)), -0.35rem);
}

.unlock-tile[data-tooltip-placement="below"] .unlock-tooltip::before,
.inventory-item[data-tooltip-placement="below"] .unlock-tooltip::before {
  top: auto;
  bottom: 100%;
  border-width: 0 0.45rem 0.45rem;
  border-color: transparent transparent rgba(8, 15, 20, 0.96);
}

.unlock-tile:hover .unlock-tooltip,
.unlock-tile:focus-visible .unlock-tooltip,
.inventory-item:hover .unlock-tooltip,
.inventory-item:focus-visible .unlock-tooltip {
  opacity: 1;
  transform: translate(calc(-50% + var(--unlock-tooltip-shift-x)), 0);
}

.unlock-tile:focus-visible,
.inventory-item[data-has-tooltip="true"]:focus-visible {
  outline: 2px solid rgba(126, 223, 247, 0.7);
  outline-offset: 3px;
}

.unlock-glyph {
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 1rem;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  font-weight: 700;
  color: #132028;
  background: linear-gradient(180deg, #ffd166 0%, #ffb547 100%);
}

.unlock-tile.is-locked .unlock-glyph {
  color: var(--text);
  background: linear-gradient(180deg, #27414f 0%, #15232d 100%);
}

.unlock-tile p,
.unlock-empty p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.unlock-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.unlock-new-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.42rem;
  border-radius: 999px;
  background: rgba(255, 209, 102, 0.16);
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.unlock-empty {
  display: grid;
  place-items: center;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  color: var(--accent-strong);
}

h1,
h2,
h3,
legend {
  margin: 0;
  font-family: "Aptos Display", "Bahnschrift", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
}

.lede,
.section-meta {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.hero-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.reconnect-callout {
  display: grid;
  gap: 0.8rem;
  background:
    radial-gradient(circle at top left, rgba(255, 209, 102, 0.14), transparent 42%),
    linear-gradient(180deg, rgba(30, 47, 30, 0.92), rgba(11, 24, 17, 0.96));
  border-color: rgba(123, 228, 149, 0.32);
}

.reconnect-callout .eyebrow {
  margin-bottom: 0;
  color: var(--success);
}

.reconnect-callout-details {
  color: var(--text);
  line-height: 1.6;
}

.reconnect-callout-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.reconnect-callout-actions > button {
  width: 100%;
}

.reconnect-primary-button {
  width: 100%;
  padding: 1rem 1.15rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(180deg, rgba(65, 112, 78, 0.98), rgba(25, 54, 35, 0.98));
  border-color: rgba(123, 228, 149, 0.42);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.compact-head {
  margin-bottom: 0.7rem;
}

.stack-form {
  display: grid;
  gap: 0.9rem;
}

.stack-form label {
  display: grid;
  gap: 0.4rem;
}

.stack-form span {
  color: var(--muted);
  font-size: 0.95rem;
}

.element-fieldset {
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  padding: 0.9rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.element-fieldset .section-meta {
  grid-column: 1 / -1;
  margin: 0;
}

.element-option {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 5rem;
  padding: 1rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(118, 174, 194, 0.26);
  background: rgba(12, 24, 31, 0.72);
  cursor: pointer;
  overflow: hidden;
  text-align: center;
  user-select: none;
  transition:
    transform 120ms ease-out,
    border-color 120ms ease-out,
    box-shadow 120ms ease-out,
    opacity 120ms ease-out,
    filter 120ms ease-out,
    background-color 120ms ease-out;
}

.element-option::before {
  position: absolute;
  z-index: 2;
  pointer-events: none;
}

.element-option span {
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
  margin-top: 0.85rem;
}

.element-option:hover {
  transform: translateY(-1px);
}

.element-option:focus-within {
  outline: 2px solid rgba(237, 248, 251, 0.75);
  outline-offset: 2px;
}

.element-option.is-selected {
  border-color: rgba(237, 248, 251, 0.8);
  box-shadow:
    inset 0 0 0 1px rgba(237, 248, 251, 0.22),
    0 16px 32px rgba(0, 0, 0, 0.24);
  transform: translateY(-2px);
}

.element-option.is-primary-selected {
  border-color: rgba(255, 255, 255, 0.96);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.32),
    0 18px 34px rgba(0, 0, 0, 0.28),
    0 0 0 2px rgba(237, 248, 251, 0.18);
}

.element-option.is-secondary-selected {
  border-color: rgba(210, 232, 240, 0.88);
  box-shadow:
    inset 0 0 0 1px rgba(210, 232, 240, 0.22),
    0 14px 28px rgba(0, 0, 0, 0.24);
}

.element-option[data-selection-index]::before {
  content: "(" attr(data-selection-index) ")";
  top: 0.6rem;
  left: 0.65rem;
  min-width: 2rem;
  height: 1.45rem;
  padding: 0 0.45rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(237, 248, 251, 0.18);
  background: rgba(6, 16, 23, 0.38);
  color: rgba(241, 249, 251, 0.96);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.28);
}

.element-fieldset.is-selection-capped .element-option.is-capped-out {
  opacity: 0.68;
  filter: saturate(0.72) brightness(0.9);
}

.element-option.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
  filter: saturate(0.8);
}

.element-option[data-element="water"] {
  background:
    radial-gradient(circle at top, rgba(147, 208, 255, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(34, 77, 118, 0.96), rgba(15, 38, 61, 0.96));
}

.element-option[data-element="air"] {
  background:
    radial-gradient(circle at top, rgba(255, 244, 174, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(137, 112, 24, 0.96), rgba(86, 68, 14, 0.96));
}

.element-option[data-element="earth"] {
  background:
    radial-gradient(circle at top, rgba(214, 170, 126, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(112, 76, 41, 0.96), rgba(66, 41, 21, 0.96));
}

.element-option[data-element="fire"] {
  background:
    radial-gradient(circle at top, rgba(255, 161, 126, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(136, 47, 33, 0.96), rgba(82, 24, 17, 0.96));
}

.element-option[data-element="void"] {
  background:
    radial-gradient(circle at top, rgba(176, 162, 224, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(64, 55, 94, 0.96), rgba(30, 25, 46, 0.96));
}

.element-option input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.inline-message {
  min-height: 1.4rem;
  margin: 0;
  color: var(--muted);
}

.inline-message[data-tone="error"] {
  color: var(--danger);
}

.inline-message[data-tone="success"] {
  color: var(--success);
}

.session-list {
  display: grid;
  gap: 0.85rem;
}

.session-card,
.session-empty,
.detail-card {
  padding: 1rem;
  border-radius: 1rem;
  background: var(--panel-soft);
  border: 1px solid rgba(118, 174, 194, 0.16);
  line-height: 1.5;
}

.progression-card {
  display: grid;
  gap: 0.65rem;
  margin: 0;
}

.progression-summary-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.progression-summary-message,
.progression-summary-stats,
.progression-summary-framework {
  margin: 0;
}

.progression-summary-message,
.progression-summary-framework {
  color: var(--muted);
}

.progression-summary-stats {
  font-variant-numeric: tabular-nums;
}

.session-card-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 0.9rem;
}

.session-card-head p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.session-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.session-meta-grid div {
  margin: 0;
}

.session-meta-grid dt {
  color: var(--muted);
  font-size: 0.84rem;
}

.session-meta-grid dd {
  margin: 0.2rem 0 0;
}

.shell {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr) minmax(300px, 360px);
  gap: 1rem;
  padding: 1rem;
  align-items: start;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.board-column {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.tower-panel,
.inventory-panel {
  display: grid;
  gap: 0.75rem;
  align-self: start;
  max-height: calc(100vh - 2rem);
  max-height: calc(100dvh - 2rem);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-gutter: stable;
}

.inventory-sidebar-view {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.inventory-sidebar-button {
  width: 100%;
}

.sidebar-session-controls {
  display: grid;
  gap: 0.75rem;
}

.sidebar-session-controls-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.sidebar-session-controls-grid > :first-child,
.sidebar-session-controls-grid > .sidebar-toggle-control {
  grid-column: 1 / -1;
}

.sidebar-toggle-control {
  width: 100%;
}

.sidebar-session-access {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(177, 205, 255, 0.22);
  background: linear-gradient(180deg, rgba(15, 31, 43, 0.92), rgba(9, 18, 26, 0.96));
  color: rgba(231, 241, 255, 0.92);
  font-size: 0.92rem;
  line-height: 1.45;
}

.inventory-panel.is-stash-open {
  align-content: start;
}

.inventory-panel.is-element-upgrades-open {
  align-content: start;
}

.tower-selection {
  display: grid;
  gap: 0.75rem;
  min-height: 0;
}

.selection-empty {
  min-height: 180px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1.15rem;
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(19, 36, 45, 0.92), rgba(10, 20, 26, 0.92)),
    var(--panel-soft);
  border: 1px solid rgba(118, 174, 194, 0.16);
}

.selection-empty p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.tower-summary-card {
  padding: 0.85rem;
  border-radius: 1rem;
  background:
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(18, 37, 47, 0.96), rgba(8, 18, 24, 0.96));
  border: 1px solid rgba(118, 174, 194, 0.16);
}

.tower-notes p,
.inventory-item-detail,
.inventory-overflow {
  margin: 0.25rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.tower-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.tower-stat-card {
  padding: 0.68rem 0.78rem;
  border-radius: 0.9rem;
  background: rgba(8, 18, 24, 0.9);
  border: 1px solid rgba(118, 174, 194, 0.12);
}

.tower-effect-card,
.tower-detail-row {
  padding: 0.72rem 0.82rem;
  border-radius: 0.9rem;
  background: rgba(8, 18, 24, 0.82);
  border: 1px solid rgba(118, 174, 194, 0.12);
}

.tower-effect-card {
  grid-column: 1 / -1;
}

.tower-stat-card span,
.tower-effect-card span,
.tower-detail-row span,
.resource-card span,
.inventory-slot-empty,
.badge {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tower-stat-card strong,
.tower-detail-row strong,
.resource-card strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.05rem;
}

.tower-effect-card p,
.tower-detail-row p {
  margin: 0.3rem 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.tower-summary-actions,
.tower-notes,
.tower-inventory-section,
.tower-footer,
.tower-action-row,
.hud-panel {
  display: grid;
  gap: 0.75rem;
}

.tower-panel-head .section-meta {
  margin-top: 0.2rem;
}

.tower-detail-button {
  width: 100%;
}

.tower-action-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tower-note {
  padding: 0.85rem 0.95rem;
  border-radius: 0.95rem;
  background: rgba(8, 18, 24, 0.78);
  border: 1px solid rgba(118, 174, 194, 0.12);
}

.tower-option-control {
  width: 100%;
}

.tower-note strong {
  display: block;
  margin-bottom: 0.3rem;
}

.hud-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.hud-build-row {
  justify-content: space-between;
}

.build-controls {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(180px, 240px);
  gap: 0.75rem;
  flex: 1 1 360px;
}

.hud-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 0.75rem;
  flex: 1 1 320px;
}

.resource-card {
  padding: 0.8rem 0.9rem;
  border-radius: 0.95rem;
  background: rgba(8, 18, 24, 0.9);
  border: 1px solid rgba(118, 174, 194, 0.12);
}

.toggle-control {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.8rem 0.95rem;
  min-height: 100%;
  border-radius: 0.85rem;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, #27414f 0%, #15232d 100%);
}

.toggle-control input {
  width: auto;
  margin: 0;
}

.board {
  position: relative;
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  background: #0c151b;
  min-height: 420px;
}

#gameCanvas {
  display: block;
  width: min(100%, 1280px);
  height: auto;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    #132028;
  background-size: auto, 32px 32px, 32px 32px, auto;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(4, 8, 11, 0.58);
  font-size: 1.35rem;
  text-align: center;
  padding: 2rem;
}

.join-notification-layer {
  position: absolute;
  top: 1rem;
  left: 50%;
  z-index: 6;
  display: grid;
  gap: 0.65rem;
  width: min(420px, calc(100% - 2rem));
  pointer-events: none;
  transform: translateX(-50%);
}

.achievement-toast-layer {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 6;
  display: grid;
  gap: 0.7rem;
  width: min(360px, calc(100% - 2rem));
  justify-items: end;
  pointer-events: none;
}

.join-notification {
  padding: 0.85rem 1rem;
  border-radius: 0.95rem;
  border: 1px solid rgba(72, 213, 255, 0.28);
  background:
    radial-gradient(circle at top left, rgba(72, 213, 255, 0.18), transparent 38%),
    linear-gradient(180deg, rgba(16, 34, 44, 0.96), rgba(8, 18, 24, 0.96));
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.28);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
  animation: join-toast-in 180ms ease-out;
}

.achievement-toast {
  width: 100%;
  padding: 0.95rem 1rem 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 209, 102, 0.34);
  background:
    radial-gradient(circle at top left, rgba(255, 209, 102, 0.18), transparent 38%),
    linear-gradient(180deg, rgba(24, 32, 19, 0.96), rgba(12, 20, 17, 0.98));
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.34);
  transform-origin: top right;
  animation: achievement-toast-life var(--achievement-toast-duration, 4200ms) linear forwards;
}

.achievement-toast strong,
.achievement-toast p,
.achievement-toast-label,
.achievement-toast-reward {
  display: block;
}

.achievement-toast strong {
  margin-top: 0.2rem;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.achievement-toast p,
.achievement-toast-reward {
  margin: 0.35rem 0 0;
  line-height: 1.45;
}

.achievement-toast-label {
  color: var(--accent-strong);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.achievement-toast p {
  color: var(--text);
  font-size: 0.92rem;
}

.achievement-toast-reward {
  color: var(--muted);
  font-size: 0.82rem;
}

@keyframes join-toast-in {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes achievement-toast-life {
  0% {
    opacity: 0;
    transform: translateY(-10px) scale(0.97);
  }

  10%,
  78% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  100% {
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
  }
}

.player-roster-section {
  display: grid;
  gap: 0.6rem;
}

.player-stash-section {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  min-height: 0;
}

.element-upgrades-section {
  display: grid;
  gap: 0.7rem;
  align-content: start;
  min-height: 0;
}

.element-upgrade-header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
}

.element-upgrades-list,
.element-upgrade-tower-list,
.element-upgrade-menu-list {
  display: grid;
  gap: 0.8rem;
}

.element-upgrade-element-group,
.element-upgrade-tower-card,
.element-upgrade-card,
.element-upgrade-empty {
  border: 1px solid rgba(118, 174, 194, 0.14);
  background:
    linear-gradient(180deg, rgba(18, 35, 44, 0.88), rgba(8, 17, 23, 0.92)),
    rgba(8, 18, 24, 0.92);
}

.element-upgrade-element-group,
.element-upgrade-tower-card,
.element-upgrade-empty {
  padding: 0.9rem 0.95rem;
  border-radius: 0.95rem;
}

.element-upgrade-element-group {
  display: grid;
  gap: 0.8rem;
}

.element-upgrade-nav-button {
  width: 100%;
  display: grid;
  gap: 0.45rem;
  padding: 0.9rem 0.95rem;
  border-radius: 0.95rem;
  text-align: left;
  white-space: normal;
  background:
    linear-gradient(180deg, rgba(18, 35, 44, 0.88), rgba(8, 17, 23, 0.92)),
    rgba(8, 18, 24, 0.92);
}

.element-upgrade-nav-button-compact {
  gap: 0.25rem;
  padding: 0.72rem 0.82rem;
}

.element-upgrade-nav-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.element-upgrade-nav-meta {
  display: block;
  color: var(--muted);
  line-height: 1.5;
}

.element-upgrade-nav-button-element[data-element="water"] {
  background:
    radial-gradient(circle at top, rgba(147, 208, 255, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(34, 77, 118, 0.96), rgba(15, 38, 61, 0.96));
}

.element-upgrade-nav-button-element[data-element="air"] {
  background:
    radial-gradient(circle at top, rgba(255, 244, 174, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(137, 112, 24, 0.96), rgba(86, 68, 14, 0.96));
}

.element-upgrade-nav-button-element[data-element="earth"] {
  background:
    radial-gradient(circle at top, rgba(214, 170, 126, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(112, 76, 41, 0.96), rgba(66, 41, 21, 0.96));
}

.element-upgrade-nav-button-element[data-element="fire"] {
  background:
    radial-gradient(circle at top, rgba(255, 161, 126, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(136, 47, 33, 0.96), rgba(82, 24, 17, 0.96));
}

.element-upgrade-nav-button-element[data-element="void"] {
  background:
    radial-gradient(circle at top, rgba(176, 162, 224, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(64, 55, 94, 0.96), rgba(30, 25, 46, 0.96));
}

.element-upgrade-element-group[data-element="water"] {
  background:
    radial-gradient(circle at top right, rgba(72, 213, 255, 0.14), transparent 36%),
    linear-gradient(180deg, rgba(18, 35, 44, 0.9), rgba(8, 17, 23, 0.94));
}

.element-upgrade-tower-card {
  display: grid;
  gap: 0.75rem;
}

.element-upgrade-tower-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.element-upgrade-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.65rem;
}

.element-upgrade-card {
  display: grid;
  gap: 0.55rem;
  padding: 0.8rem;
  border-radius: 0.9rem;
  min-width: 0;
}

.element-upgrade-card-head {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.65rem;
}

.element-upgrade-current,
.element-upgrade-next,
.element-upgrade-empty p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.element-upgrade-buy-button {
  width: 100%;
}

.player-stash-meta-row {
  align-items: center;
  margin-bottom: 0.15rem;
}

.player-stash-meta-row .section-meta {
  margin: 0;
}

.player-roster-list {
  display: grid;
  gap: 0.65rem;
}

.player-roster-card,
.player-roster-empty {
  padding: 0.85rem 0.95rem;
  border-radius: 0.95rem;
  border: 1px solid rgba(118, 174, 194, 0.14);
  background:
    linear-gradient(180deg, rgba(18, 35, 44, 0.88), rgba(8, 17, 23, 0.92)),
    rgba(8, 18, 24, 0.92);
}

.player-roster-card {
  display: grid;
  gap: 0.45rem;
}

.player-roster-card.is-you {
  border-color: rgba(72, 213, 255, 0.4);
  box-shadow: 0 0 0 1px rgba(72, 213, 255, 0.12);
}

.player-roster-card.is-disconnected {
  opacity: 0.72;
}

.player-roster-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}

.player-roster-name {
  font-weight: 700;
}

.player-roster-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
}

.player-roster-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(118, 174, 194, 0.12);
  color: var(--muted);
}

.player-roster-tag.is-you {
  background: rgba(72, 213, 255, 0.16);
  color: var(--accent);
}

.player-roster-tag.is-online {
  background: rgba(123, 228, 149, 0.16);
  color: var(--success);
}

.player-roster-tag.is-offline {
  background: rgba(255, 123, 114, 0.14);
  color: var(--danger);
}

.player-roster-vote-kick-button {
  border: 1px solid rgba(255, 123, 114, 0.35);
  background: rgba(255, 123, 114, 0.12);
  color: var(--danger);
  border-radius: 999px;
  padding: 0.18rem 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

.player-roster-vote-kick-button:hover {
  background: rgba(255, 123, 114, 0.18);
  border-color: rgba(255, 123, 114, 0.48);
}

.player-roster-vote-kick-button.is-active {
  background: rgba(255, 123, 114, 0.24);
  border-color: rgba(255, 123, 114, 0.62);
  color: #ffe5e2;
}

.player-roster-meta,
.player-roster-empty {
  color: var(--muted);
  line-height: 1.5;
}

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

.tower-inventory-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
}

.player-inventory-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-content: start;
  gap: 0.45rem;
  max-height: none;
  overflow: visible;
  padding-right: 0;
}

.inventory-slot {
  position: relative;
  min-height: 118px;
  border-radius: 1rem;
  border: 1px dashed rgba(118, 174, 194, 0.18);
  background:
    linear-gradient(180deg, rgba(18, 35, 44, 0.84), rgba(8, 17, 23, 0.9)),
    rgba(8, 18, 24, 0.92);
  overflow: visible;
}

.tower-inventory-grid .inventory-slot {
  min-height: 140px;
}

.tower-inventory-grid .compact-slot {
  min-height: 58px;
  border-radius: 0.75rem;
}

.player-inventory-grid .inventory-slot,
.compact-slot {
  min-height: 58px;
  border-radius: 0.75rem;
}

.inventory-slot.filled {
  border-style: solid;
}

.inventory-slot.is-drop-valid {
  border-color: rgba(72, 213, 255, 0.82);
  box-shadow: 0 0 0 1px rgba(72, 213, 255, 0.25), 0 14px 30px rgba(15, 70, 86, 0.28);
  transform: translateY(-1px);
}

.inventory-slot-empty {
  display: grid;
  place-items: center;
  min-height: inherit;
  padding: 1rem;
  text-align: center;
  line-height: 1.5;
}

.compact-empty {
  padding: 0.3rem;
  font-size: 0.54rem;
  line-height: 1.2;
}

.inventory-item {
  display: grid;
  gap: 0.55rem;
  min-height: inherit;
  padding: 0.9rem;
  cursor: grab;
  position: relative;
  border-radius: inherit;
  background:
    radial-gradient(circle at top right, rgba(255, 181, 71, 0.2), transparent 38%),
    linear-gradient(180deg, rgba(31, 53, 65, 0.95), rgba(11, 22, 29, 0.96));
}

.inventory-item-compact {
  position: relative;
  place-items: center;
  gap: 0;
  padding: 0.3rem;
}

.inventory-item[draggable="false"] {
  cursor: default;
}

.inventory-item.is-dragging {
  opacity: 0.45;
}

.inventory-item-header {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.inventory-item-icon {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 0.8rem;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  font-weight: 700;
  color: #132028;
  background: linear-gradient(180deg, #ffd166 0%, #ffb547 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.inventory-item-compact .inventory-item-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 0.7rem;
  font-size: 0.78rem;
}

.inventory-item-compact-badge {
  position: absolute;
  right: 0.2rem;
  bottom: 0.15rem;
  min-width: 1rem;
  padding: 0.08rem 0.24rem;
  border-radius: 999px;
  background: rgba(8, 18, 24, 0.88);
  color: var(--accent-strong);
  font-size: 0.58rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  border: 1px solid rgba(255, 209, 102, 0.16);
}

.inventory-item-name {
  display: block;
  font-weight: 700;
}

.inventory-item-source {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: rgba(255, 209, 102, 0.12);
}

.badge {
  padding: 0.5rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(118, 174, 194, 0.18);
  background: rgba(8, 18, 24, 0.82);
  white-space: nowrap;
}

.tower-details-modal {
  display: grid;
  gap: 0.9rem;
  padding: 1.15rem;
}

.tower-details-grid {
  display: grid;
  gap: 0.65rem;
}

.tower-detail-row {
  display: grid;
  grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
}

.tower-detail-row strong {
  margin-top: 0;
  font-size: 0.98rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

button,
select,
input,
.inventory-slot,
.inventory-item {
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

button:hover:not(:disabled),
select:hover,
.inventory-item[draggable="true"]:hover {
  transform: translateY(-1px);
}

button:hover:not(:disabled),
select:hover,
input:focus,
select:focus,
.inventory-item[draggable="true"]:hover {
  border-color: rgba(72, 213, 255, 0.52);
  box-shadow: 0 0 0 1px rgba(72, 213, 255, 0.16);
}

@media (max-width: 1040px) {
  .hero-grid,
  .shell {
    grid-template-columns: 1fr;
  }

  .tower-panel,
  .inventory-panel {
    max-height: none;
    overflow: visible;
  }

  .build-controls,
  .hud-stats,
  .tower-stat-grid,
  .element-upgrade-grid {
    grid-template-columns: 1fr;
  }

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

  .player-inventory-grid {
    max-height: none;
  }

  .sidebar-session-controls-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .lobby-shell {
    width: min(100vw, calc(100vw - 1rem));
    padding-top: 0.75rem;
  }

  .account-manager-actions,
  .hero-actions,
  .element-fieldset,
  .session-meta-grid {
    grid-template-columns: 1fr;
  }

  .account-manager-actions,
  .hud-row,
  .panel-head {
    flex-direction: column;
    align-items: stretch;
  }

  .account-summary-top,
  .account-item-head,
  .account-summary-meta,
  .progression-summary-head {
    flex-direction: column;
  }
}