:root { color-scheme: dark; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #061827; color: #f1f7ff; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 20rem; background: radial-gradient(circle at top, #104c75, #061827 45rem); }
button, input { font: inherit; }
button { min-height: 2.75rem; padding: .55rem .9rem; border: 0; border-radius: .65rem; background: #3ec6f0; color: #032035; font-weight: 750; cursor: pointer; }
button:focus-visible, input:focus-visible, .cell:focus-visible { outline: .2rem solid #ffe56a; outline-offset: .15rem; }
button:hover:not(:disabled) { filter: brightness(1.08); } button:active:not(:disabled) { filter: brightness(.94); transform: translateY(1px); } button:disabled { cursor: not-allowed; opacity: .48; }
button.secondary { background: #31536e; color: #f1f7ff; } button.text-button { min-height: 2rem; padding: .35rem 0; background: transparent; color: #bad9eb; text-decoration: underline; }
.app-shell { width: min(100%, 70rem); margin: 0 auto; padding: clamp(1rem, 3vw, 2rem); }
.app-header, .screen-heading { display: flex; flex-wrap: wrap; align-items: start; justify-content: space-between; gap: 1rem; } .app-header > div { min-width: 0; }
h1, h2, h3, p { margin-top: 0; } h1 { margin-bottom: .2rem; font-size: clamp(1.75rem, 6vw, 2.6rem); } h2 { font-size: clamp(1.35rem, 4vw, 1.8rem); } h3 { margin-bottom: .75rem; font-size: 1.05rem; }
.eyebrow, .muted { color: #b6d1e3; } .eyebrow { margin-bottom: .25rem; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.connection-status { max-width: 100%; margin: .25rem 0; padding: .4rem .6rem; border-radius: 99rem; background: #28485f; color: #d8eaff; font-size: .88rem; overflow-wrap: anywhere; } .connection-status.online { background: #145b4b; color: #cdfae6; } .connection-status.offline { background: #6f3c36; color: #ffddd8; }
.notice { margin: 1rem 0; padding: .75rem 1rem; border-left: .3rem solid #ffe56a; border-radius: .35rem; background: #403b22; } .notice.error { border-color: #ff8e80; background: #4d2929; }
.screen, .panel { margin-top: 1rem; padding: clamp(1rem, 3vw, 1.5rem); border: 1px solid #41708d; border-radius: 1rem; background: rgb(8 39 62 / 92%); box-shadow: 0 1rem 3rem rgb(0 0 0 / 18%); } .panel { margin-top: 1rem; background: #0b304b; }
.stack-form { display: grid; gap: .7rem; max-width: 28rem; } input { width: 100%; min-height: 2.75rem; padding: .55rem .7rem; border: 1px solid #6a94ad; border-radius: .65rem; background: #061c2d; color: #f1f7ff; } input:focus-visible { border-color: #3ec6f0; background: #082a41; box-shadow: 0 0 0 .22rem rgb(62 198 240 / 28%); }
.button-row { display: flex; flex-wrap: wrap; gap: .6rem; } .button-row > * { flex: 1 1 11rem; } .mode-button[aria-pressed="true"] { background: #ffe56a; color: #312c00; }
.connection-layout { display: grid; gap: 1.25rem; } .connection-form { min-width: 0; } .connection-support { padding: 1rem; border: 1px solid #315a75; border-radius: .8rem; background: rgb(10 48 75 / 68%); } .connection-support h3 { margin-bottom: .65rem; } .join-steps { display: grid; gap: .55rem; margin: 0; padding-left: 1.35rem; color: #c8e9f8; } .join-steps li { padding-left: .15rem; } .availability-panel { margin-top: 1rem; padding-top: .9rem; border-top: 1px solid rgb(80 128 156 / 65%); } .availability-panel .eyebrow { margin-bottom: .45rem; }
#availability { display: grid; grid-template-columns: minmax(0, 1fr); gap: .45rem; margin-bottom: 0; } .availability-item { display: block; padding: .45rem .6rem; border-left: 2px solid #41708d; border-radius: .35rem; background: rgb(18 59 88 / 62%); }
.turn-status { margin-bottom: 0; color: #c8e9f8; font-weight: 650; } .score { margin: .15rem 0; padding: .5rem .75rem; border-radius: .6rem; background: #123b58; font-weight: 750; white-space: nowrap; }
.board-tabs { display: flex; gap: .5rem; margin: 1rem 0; } .board-tabs button { flex: 1; min-height: 2.5rem; background: #31536e; color: #f1f7ff; } .board-tabs button[aria-selected="true"] { background: #3ec6f0; color: #032035; }
.boards { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; } .board { min-width: 0; padding: .75rem; border: 1px solid #50809c; border-radius: .8rem; background: #071f32; } .board h3 { margin: 0 0 .65rem; font-size: 1rem; }
.board-grid { display: grid; grid-template-columns: 1.15rem repeat(10, minmax(0, 1fr)); gap: 2px; width: 100%; aspect-ratio: 1.1; } .axis { display: grid; place-items: center; color: #b8d3e6; font-size: clamp(.52rem, 2.2vw, .72rem); font-weight: 700; }
.cell { min-height: 0; padding: 0; border-radius: .12rem; border: 1px solid #4e87a6; background: #167aa6; color: #fff; font-size: clamp(.68rem, 3vw, 1.15rem); line-height: 1; } .cell.ship { background: #b2c8d6; color: #1c3442; } .cell.miss::before { content: "•"; color: #08253a; font-size: 1.15em; } .cell.hit, .cell.sunk { background: #b83e42; color: #fff; } .cell.hit::before, .cell.sunk::before { content: "×"; font-size: 1.25em; font-weight: 900; } .cell.sunk { outline: 2px solid #ffe56a; outline-offset: -3px; } .cell.target { background: #0c648b; cursor: pointer; } .cell.selected { outline: 3px solid #ffe56a; outline-offset: -3px; } .cell[disabled] { opacity: 1; cursor: default; }
.shot-controls { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem; margin-top: 1rem; } .shot-controls p { flex: 1 1 14rem; margin: 0; } .reconnecting { border-color: #ffe56a; } .error-screen { border-color: #ff8e80; }
@media (min-width: 44rem) { .app-shell { display: flex; flex-direction: column; min-height: 100svh; } .app-header { align-items: center; } .connection-status { margin: 0; } #screen-connect { width: min(100%, 48rem); margin: clamp(1.25rem, 4vh, 2.5rem) auto auto; padding: clamp(1.5rem, 4vw, 2.5rem); } #screen-connect .stack-form { width: min(100%, 42rem); max-width: 42rem; } #screen-connect .button-row > * { flex-basis: 16rem; } .boards { grid-template-columns: repeat(2, minmax(0, 1fr)); } .board-tabs { display: none; } .board[hidden] { display: block; } }
@media (min-width: 60rem) { #screen-connect { width: 100%; max-width: none; min-height: min(29rem, calc(100svh - 9rem)); display: grid; align-content: center; } #screen-connect .connection-layout { grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr); align-items: stretch; gap: clamp(1.5rem, 4vw, 3rem); } #screen-connect .stack-form { max-width: none; } #screen-connect .connection-support { display: flex; flex-direction: column; justify-content: center; } }
@media (max-width: 43.99rem) { .app-shell { padding-inline: max(1.25rem, env(safe-area-inset-left)) max(1.25rem, env(safe-area-inset-right)); } .app-header { flex-direction: column; align-items: stretch; gap: .45rem; } .connection-status { align-self: flex-start; margin: 0; } #screen-connect { padding: 1.25rem; } .button-row { flex-direction: column; flex-wrap: nowrap; } .button-row > * { flex: 0 0 auto; width: 100%; min-height: 3rem; } #availability { margin-top: 0; } .board[hidden] { display: none; } .result-boards .board[hidden] { display: block; } }