/* ============================================================
   DOOM ARENA — theme + components
   ============================================================ */

:root {
    /* palette */
    --bg: #0a0908;
    --bg-elev: #131110;
    --bg-sunk: #050403;
    --fg: oklch(0.96 0.005 80);
    --fg-dim: oklch(0.72 0.008 80);
    --fg-mute: oklch(0.48 0.008 80);
    --rule: oklch(0.28 0.008 80);
    --rule-soft: oklch(0.18 0.008 80);

    /* accent — Cartesi-aligned cyan */
    --accent: rgb(0, 246, 255);
    --accent-dim: rgba(0, 246, 255, 0.18);
    --accent-glow: rgba(0, 246, 255, 0.35);

    /* status */
    --unnavailable: oklch(0.5294 0 2);
    --ok: oklch(0.78 0.14 145);
    --warn: oklch(0.82 0.16 80);
    --bad: oklch(0.66 0.2 25);

    /* type */
    --font-mono:
        "IBM Plex Mono", ui-monospace, "JetBrains Mono", Menlo, monospace;
    --font-sans: "Space Grotesk", system-ui, -apple-system, sans-serif;

    /* scale — compact base */
    --pad: 14px;
    --pad-sm: 8px;
    --gap: 10px;
    --row: 32px;
    --side-w: 320px;
}

/* ============================================================
   reset
   ============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}
body {
    min-height: 100vh;
}
a {
    color: var(--accent);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
button {
    font: inherit;
    color: inherit;
    background: transparent;
    border: 0;
    cursor: pointer;
}
[hidden] {
    display: none !important;
}

/* ============================================================
   type primitives
   ============================================================ */
.mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}
.label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--fg-mute);
}
.label.dim {
    color: var(--fg-mute);
    opacity: 0.85;
}
.eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--fg-mute);
}
h1,
h2,
h3,
h4 {
    font-weight: 500;
    letter-spacing: -0.01em;
    margin: 0;
}

/* ============================================================
   layout
   ============================================================ */
.shell {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--pad);
}

/* ============================================================
   topbar
   ============================================================ */
.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    background: color-mix(in oklab, var(--bg) 88%, transparent);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--rule-soft);
}
.topbar-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--gap);
    padding: 12px var(--pad);
    max-width: 1440px;
    margin: 0 auto;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}
.brand-mark {
    width: 16px;
    height: 16px;
    position: relative;
    display: inline-block;
}
.brand-mark::before,
.brand-mark::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1.5px solid var(--accent);
}
.brand-mark::after {
    transform: rotate(45deg) scale(0.55);
    background: var(--accent);
}
.brand small {
    color: var(--fg-mute);
    margin-left: 4px;
}

.nav {
    display: flex;
    gap: 22px;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.nav a {
    color: var(--fg-dim);
}
.nav a:hover {
    color: var(--accent);
    text-decoration: none;
}

.wallet {
    display: flex;
    align-items: center;
    gap: 10px;
}
.chain-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 11px;
    border: 1px solid var(--rule);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    color: var(--fg-dim);
}
.dot {
    width: 6px;
    height: 6px;
    background: var(--unnavailable);
    box-shadow: 0 0 8px var(--ok);
    display: inline-block;
}
.dot.pulse {
    animation: pulse 1.6s ease-in-out infinite;
}
.dot.pulse {
    animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.35;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: transparent;
    transition:
        background 0.12s,
        color 0.12s;
}
.btn:hover {
    background: var(--accent);
    color: var(--bg);
}
.btn.ghost {
    border-color: var(--rule);
    color: var(--fg-dim);
}
.btn.ghost:hover {
    background: var(--bg-elev);
    color: var(--accent);
    border-color: var(--accent);
}

.ico-btn {
    width: 28px;
    height: 28px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--rule);
    color: var(--fg-dim);
    font-family: var(--font-mono);
    font-size: 11px;
}
.ico-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* ============================================================
   hero head
   ============================================================ */
.hero-head {
    padding: calc(var(--pad) * 1.6) 0 var(--pad);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--gap);
    flex-wrap: wrap;
}
.title-block .eyebrow {
    margin-bottom: 10px;
}
.title-block h1 {
    font-size: clamp(28px, 3.4vw, 42px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    font-weight: 500;
    margin: 0;
}
.title-block h1 .accent {
    color: var(--accent);
}
.hero-sub {
    margin: 8px 0 0;
    max-width: 56ch;
    color: var(--fg-dim);
    font-size: 13px;
    line-height: 1.55;
}
.title-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* ============================================================
   stage
   ============================================================ */
.stage {
    display: grid;
    grid-template-columns: 1fr var(--side-w);
    gap: var(--gap);
    align-items: start;
    padding-bottom: calc(var(--pad) * 2);
}
@media (max-width: 1000px) {
    .stage {
        grid-template-columns: 1fr;
    }
}

/* canvas frame */
.canvas-wrap {
    display: grid;
    gap: 8px;
}
.canvas-frame {
    position: relative;
    border: 1px solid var(--rule);
    background: var(--bg-sunk);
    aspect-ratio: 4 / 3;
    overflow: hidden;
}
.canvas-corner-tr,
.canvas-corner-bl,
.canvas-frame::before,
.canvas-frame::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    border: 1px solid var(--accent);
    z-index: 2;
}
.canvas-frame::before {
    top: -1px;
    left: -1px;
    border-right: 0;
    border-bottom: 0;
}
.canvas-frame::after {
    bottom: -1px;
    right: -1px;
    border-left: 0;
    border-top: 0;
}
.canvas-corner-tr {
    top: -1px;
    right: -1px;
    border-left: 0;
    border-bottom: 0;
}
.canvas-corner-bl {
    bottom: -1px;
    left: -1px;
    border-right: 0;
    border-top: 0;
}

#emulator-iframe {
    position: absolute;
    margin: auto;
    inset: 0;
    width: 68%;
    height: 100%;
    border: 0;
    background: var(--bg-sunk);
    z-index: 0;
}
.canvas-frame.iframe-loaded .canvas-slot {
    display: none;
}

.canvas-slot {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--fg-mute);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    z-index: 1;
    pointer-events: none;
    background: repeating-linear-gradient(
        45deg,
        transparent 0 18px,
        rgba(255, 255, 255, 0.018) 18px 19px
    );
}
.canvas-slot .tag {
    text-align: center;
    display: grid;
    gap: 6px;
}
.canvas-slot .tag b {
    font-weight: 500;
    color: var(--fg-dim);
    letter-spacing: 0.22em;
    font-size: 11px;
}
.canvas-slot .tag span {
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--fg-mute);
}

/* REPLAY badge */
.replay-badge {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: none;
    align-items: center;
    gap: 8px;
    padding: 6px 10px 6px 12px;
    background: color-mix(in oklab, var(--bg) 75%, transparent);
    backdrop-filter: blur(4px);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}
.canvas-frame.is-replay .replay-badge {
    display: inline-flex;
}
.canvas-frame.is-replay {
    outline: 1px solid var(--accent);
    outline-offset: 0;
}
.canvas-frame.is-replay::before,
.canvas-frame.is-replay::after,
.canvas-frame.is-replay .canvas-corner-tr,
.canvas-frame.is-replay .canvas-corner-bl {
    box-shadow: 0 0 10px var(--accent-glow);
}
.replay-badge .sep {
    color: var(--fg-mute);
}
.replay-badge .exit-replay {
    margin-left: 4px;
    color: var(--accent);
    font-size: 14px;
    line-height: 1;
    padding: 0 2px;
}
.replay-badge .exit-replay:hover {
    color: var(--fg);
}

.canvas-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 2px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--fg-mute);
    text-transform: uppercase;
}
#foot-status[data-tone="ok"] {
    color: var(--ok);
}
#foot-status[data-tone="bad"] {
    color: var(--bad);
}
.canvas-foot-right {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* ============================================================
   side panels
   ============================================================ */
.side {
    display: grid;
    gap: var(--gap);
    align-content: start;
    position: sticky;
    top: 72px;
    max-height: calc(100vh - 90px);
    overflow: auto;
}
@media (max-width: 1000px) {
    .side {
        position: static;
        max-height: none;
    }
}

.panel {
    border: 1px solid var(--rule);
    background: var(--bg-elev);
}
.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 12px;
    border-bottom: 1px solid var(--rule-soft);
}
.panel-foot {
    padding: 8px 12px;
    border-top: 1px solid var(--rule-soft);
    background: var(--bg-sunk);
}

/* ============================================================
   leaderboard
   ============================================================ */
.board-note {
    padding: 6px 12px;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--bad);
    background: color-mix(in oklab, var(--bad) 12%, transparent);
    border-bottom: 1px solid var(--rule-soft);
}
.board-empty {
    padding: 16px 12px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--fg-mute);
}
.board-row {
    display: grid;
    grid-template-columns: 24px 1fr 64px 22px 22px;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    height: var(--row);
    font-family: var(--font-mono);
    font-size: 12px;
    border-bottom: 1px solid var(--rule-soft);
    cursor: pointer;
    transition: background 0.1s;
}
.board-row:last-child {
    border-bottom: 0;
}
.board-row:hover {
    background: var(--bg-sunk);
}
.board-row.active {
    background: color-mix(in oklab, var(--accent) 10%, var(--bg-elev));
    outline: 1px solid var(--accent);
    outline-offset: -1px;
}
.board-row.me .col-player span:last-child {
    color: var(--accent);
}
.board-row .col-rank {
    color: var(--fg-mute);
    font-size: 10px;
    letter-spacing: 0.18em;
}
.board-row.top .col-rank {
    color: var(--accent);
}
.board-row .col-player {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--fg-dim);
    font-size: 11px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.board-row .col-player span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
}
.board-row .col-score {
    text-align: right;
    color: var(--fg);
    font-size: 12px;
}
.board-row.top .col-score {
    color: var(--accent);
}

/* verify + play icon buttons */
.col-verify,
.col-play {
    width: 22px;
    height: 22px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--rule);
    background: transparent;
    color: var(--fg-mute);
    font-family: var(--font-mono);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
.col-verify svg,
.col-play svg {
    width: 12px;
    height: 12px;
    display: block;
}
.col-verify:hover:not(.disabled),
.col-play:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.col-verify.disabled,
.col-verify[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
}
.col-verify.v-ok {
    color: var(--ok);
    border-color: var(--ok);
    background: color-mix(in oklab, var(--ok) 14%, transparent);
}
.col-verify.v-bad {
    color: var(--bad);
    border-color: var(--bad);
    background: color-mix(in oklab, var(--bad) 12%, transparent);
}
.col-verify.v-busy {
    color: var(--accent);
    border-color: var(--accent);
}
.col-verify.v-busy svg {
    animation: arena-spin 0.9s linear infinite;
}
@keyframes arena-spin {
    from {
        transform: rotate(0);
    }
    to {
        transform: rotate(360deg);
    }
}

.avatar {
    width: 8px;
    height: 8px;
    display: inline-block;
    background: currentColor;
    flex-shrink: 0;
    transform: rotate(45deg);
}
.avatar.c0 {
    color: oklch(0.7 0.15 30);
}
.avatar.c1 {
    color: rgb(0, 246, 255);
}
.avatar.c2 {
    color: oklch(0.78 0.16 130);
}
.avatar.c3 {
    color: oklch(0.7 0.18 340);
}
.avatar.c4 {
    color: oklch(0.78 0.16 70);
}
.avatar.c5 {
    color: oklch(0.7 0.14 280);
}

/* ============================================================
   rollup state — compact widget
   ============================================================ */
.lc-compact-mini {
    padding: var(--pad-sm) var(--pad);
    display: grid;
    gap: 14px;
}
.lc-bignum {
    display: grid;
    gap: 2px;
}
.lc-bignum .v {
    font-family: var(--font-mono);
    font-size: 36px;
    line-height: 1;
    color: var(--accent);
    letter-spacing: 0.02em;
    text-shadow: 0 0 12px var(--accent-glow);
}
.lc-bignum .l {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--fg-mute);
}

.lc-current {
    border-top: 1px dashed var(--rule-soft);
    padding-top: 10px;
    display: grid;
    gap: 6px;
}
.lc-current-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}
.lc-current-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 11px;
}
.lc-current-row .mono {
    color: var(--fg-dim);
}
.lc-current-row .dim {
    color: var(--fg-mute);
}

.status {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}
.status-ok {
    color: var(--ok);
}
.status-pending {
    color: var(--warn);
}
.status-bad {
    color: var(--bad);
}
.status-open {
    color: var(--accent);
}

.status-with-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.status-with-dot .dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.dim {
    color: var(--fg-mute);
}

/* ============================================================
   controls list
   ============================================================ */
.ctl-list {
    padding: 10px 12px 12px;
    display: grid;
    gap: 6px;
}
.ctl {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--fg-dim);
}
.ctl .keys {
    display: inline-flex;
    gap: 3px;
    flex-wrap: wrap;
}
.ctl span:last-child {
    color: var(--fg-mute);
    font-size: 10px;
    letter-spacing: 0.04em;
    text-align: right;
}
kbd {
    display: inline-grid;
    place-items: center;
    min-width: 22px;
    height: 20px;
    padding: 0 5px;
    border: 1px solid var(--rule);
    border-bottom-width: 2px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--fg);
    background: var(--bg-sunk);
    letter-spacing: 0;
    text-transform: none;
}

/* ============================================================
   footer
   ============================================================ */
.footer {
    border-top: 1px solid var(--rule-soft);
    padding: var(--pad) var(--pad) calc(var(--pad) * 1.5);
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--fg-mute);
    letter-spacing: 0.12em;
}
.footer .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--gap);
    flex-wrap: wrap;
}
.footer a {
    color: var(--fg-dim);
    margin-right: 16px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 10px;
}
.footer a:hover {
    color: var(--accent);
}

/* ============================================================
   MODAL
   ============================================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    padding: 24px;
}
.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 4, 3, 0.78);
    backdrop-filter: blur(6px);
}
.modal-card {
    position: relative;
    width: min(820px, 100%);
    max-height: 88vh;
    overflow: auto;
    background: var(--bg-elev);
    border: 1px solid var(--accent);
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.6),
        0 0 0 1px var(--accent-dim);
}
.modal-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--rule-soft);
}
.modal-head .label {
    margin-bottom: 6px;
    display: block;
}
.modal-head h3 {
    font-family: var(--font-sans);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.01em;
}
.modal-close {
    font-size: 22px;
    line-height: 1;
    color: var(--fg-mute);
    padding: 0 6px;
}
.modal-close:hover {
    color: var(--accent);
}
.modal-body {
    padding: 20px;
}

.how {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--rule-soft);
    border-bottom: 1px solid var(--rule-soft);
}
@media (max-width: 760px) {
    .how {
        grid-template-columns: 1fr 1fr;
    }
}
.how-step {
    padding: 16px;
    border-right: 1px solid var(--rule-soft);
    display: grid;
    gap: 8px;
    align-content: start;
}
.how-step:last-child {
    border-right: 0;
}
@media (max-width: 760px) {
    .how-step:nth-child(2) {
        border-right: 0;
    }
    .how-step:nth-child(-n + 2) {
        border-bottom: 1px solid var(--rule-soft);
    }
}
.how-step .step {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.22em;
    color: var(--accent);
}
.how-step h4 {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
}
.how-step p {
    margin: 0;
    font-size: 12px;
    color: var(--fg-dim);
    line-height: 1.5;
}

.modal-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 16px;
}
@media (max-width: 600px) {
    .modal-meta {
        grid-template-columns: 1fr;
    }
}
.modal-meta > div {
    padding: 14px 16px;
    border: 1px solid var(--rule-soft);
    border-right: 0;
}
.modal-meta > div:last-child {
    border-right: 1px solid var(--rule-soft);
}
.modal-meta .mono {
    font-size: 11px;
    color: var(--fg-dim);
    margin-top: 4px;
    word-break: break-all;
}

/* ============================================================
   responsive
   ============================================================ */
@media (max-width: 880px) {
    .topbar-inner {
        grid-template-columns: auto auto;
        grid-template-areas: "brand wallet" "nav nav";
        row-gap: 8px;
        padding: 10px 12px;
    }
    .brand {
        grid-area: brand;
    }
    .wallet {
        grid-area: wallet;
    }
    .nav {
        grid-area: nav;
        justify-content: flex-start;
        gap: 16px;
        padding-top: 6px;
        border-top: 1px dashed var(--rule-soft);
    }
    .brand small {
        display: none;
    }
}
@media (max-width: 720px) {
    .hero-head {
        padding: 18px 0 14px;
        align-items: flex-start;
    }
    .title-block h1 {
        font-size: clamp(22px, 6vw, 32px);
    }
    .hero-sub {
        font-size: 12px;
    }
}
@media (max-width: 600px) {
    .footer .row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .footer a {
        margin-right: 12px;
    }
}
@media (max-width: 520px) {
    .topbar-inner {
        gap: 8px;
    }
    .chain-pill {
        display: none;
    }
    .btn {
        padding: 7px 10px;
        font-size: 10px;
        letter-spacing: 0.16em;
    }
    .ico-btn {
        width: 26px;
        height: 26px;
    }
    .nav {
        gap: 12px;
        font-size: 10px;
    }
    .modal {
        padding: 10px;
    }
    .modal-card {
        max-height: 92vh;
    }
    .modal-head {
        padding: 14px 14px 10px;
    }
    .modal-body {
        padding: 14px;
    }
}
@media (max-width: 360px) {
    .board-row {
        grid-template-columns: 20px 1fr 56px 20px 20px;
        gap: 6px;
        padding: 0 10px;
    }
    .col-verify,
    .col-play {
        width: 20px;
        height: 20px;
    }
}