* {
    box-sizing: border-box;
}

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

body {
    overflow: auto;
    background: #20242a;
    color: #f3f4f6;
    font-family: system-ui, sans-serif;
}

button,
input {
    font: inherit;
}

button {
    padding: 9px 14px;
    border: 1px solid #9ca3af;
    border-radius: 4px;
    background: #f9fafb;
    color: #111827;
    cursor: pointer;
}

.lobby-shell {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
}

.lobby-card {
    width: min(100%, 420px);
    padding: 32px;
    border: 1px solid #374151;
    border-radius: 10px;
    background: #111827;
}

.lobby-card h1 {
    margin: 0 0 8px;
}

.lobby-card > button {
    width: 100%;
}

.button-link {
    display: block;
    width: 100%;
    padding: 9px 14px;
    border: 1px solid #9ca3af;
    border-radius: 4px;
    background: #f9fafb;
    color: #111827;
    text-align: center;
    text-decoration: none;
}

.lobby-divider {
    margin: 20px 0;
    color: #9ca3af;
    text-align: center;
}

.lobby-card label {
    display: block;
    margin-bottom: 6px;
}

.join-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
}

.join-row input {
    min-width: 0;
    padding: 9px 12px;
    border: 1px solid #6b7280;
    border-radius: 4px;
    background: #20242a;
    color: #f3f4f6;
    font-size: 20px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.lobby-status {
    min-height: 1.5em;
    margin-bottom: 0;
    color: #d1d5db;
}

.game-shell {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    width: 100%;
    height: 100vh;
    height: 100dvh;
    min-width: 0;
    overflow: hidden;
}

.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    min-height: 44px;
    padding: 8px 12px;
    border-bottom: 1px solid #374151;
    background: #111827;
    font-size: 14px;
}

.topbar strong {
    font-size: 16px;
}

.topbar button {
    padding: 6px 12px;
}

#copy-invite {
    margin-left: auto;
}

.canvas-host {
    display: grid;
    place-items: center;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

#glcanvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 4 / 3;
    outline: none;
    background: #000;
    touch-action: none;
}

#glcanvas[hidden] {
    display: none;
}