:root {
    --bg: #061014;
    --panel: #101820;
    --panel-2: #151f2a;
    --line: #263642;
    --line-strong: #3d5563;
    --text: #ecf5f2;
    --muted: #8ea0a8;
    --cyan: #17d6c3;
    --green: #64e06b;
    --gold: #ffc857;
    --red: #ff6b6b;
    --blue: #5ca9ff;
    --ink: #05080c;
}

* {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
    background:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
        radial-gradient(circle at 78% 15%, rgba(23, 214, 195, .11), transparent 36%),
        linear-gradient(145deg, #061014 0%, #10171d 50%, #0a1119 100%);
    background-size: 42px 42px, 42px 42px, auto, auto;
    color: var(--text);
    font-family: "Exo 2", system-ui, sans-serif;
}

html.embed-mode,
html.embed-mode body {
    height: 100%;
    overflow: hidden;
}

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

button {
    border: 0;
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.embed-mode .app {
    height: 100vh;
    min-height: 0;
}

.topbar {
    min-height: 72px;
    padding: 14px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    background: rgba(6, 16, 20, .84);
    backdrop-filter: blur(12px);
    display: grid;
    grid-template-columns: minmax(210px, .75fr) minmax(280px, 1fr) auto;
    gap: 18px;
    align-items: center;
    z-index: 5;
}

.embed-mode .topbar {
    min-height: 58px;
    padding: 8px 12px;
    grid-template-columns: minmax(170px, .55fr) minmax(220px, 1fr) auto;
    gap: 10px;
}

.compact-mode .topbar {
    grid-template-columns: 1fr auto;
}

.compact-mode .brand small {
    display: none;
}

.compact-mode .level-strip {
    grid-column: 1 / -1;
    grid-row: 2;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    color: var(--ink);
    background: linear-gradient(135deg, var(--cyan), var(--gold));
    box-shadow: 0 10px 28px rgba(23, 214, 195, .22);
    flex: 0 0 auto;
}

.embed-mode .brand-mark {
    width: 34px;
    height: 34px;
}

.brand h1 {
    margin: 0;
    font-size: clamp(22px, 2.8vw, 32px);
    line-height: 1;
}

.embed-mode .brand h1 {
    font-size: clamp(18px, 2.4vw, 24px);
}

.brand small {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-weight: 800;
    line-height: 1.1;
}

.level-strip {
    display: flex;
    gap: 8px;
    justify-content: flex-start;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: 2px;
}

.level-btn {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    border: 1px solid var(--line);
    color: var(--text);
    background: rgba(16, 24, 32, .86);
    cursor: pointer;
    font-weight: 900;
    transition: transform .16s ease, border-color .16s ease, background .16s ease;
    flex: 0 0 auto;
    position: relative;
}

.embed-mode .level-btn {
    width: 36px;
    height: 36px;
}

.level-btn:hover {
    transform: translateY(-1px);
    border-color: var(--line-strong);
}

.level-btn.active {
    color: var(--ink);
    border-color: transparent;
    background: var(--cyan);
}

.level-btn.locked {
    opacity: .32;
    cursor: not-allowed;
}

.level-btn .stars {
    position: absolute;
    left: 50%;
    bottom: -7px;
    transform: translateX(-50%);
    color: var(--gold);
    font-size: 9px;
    letter-spacing: 0;
    white-space: nowrap;
}

.top-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: rgba(21, 31, 42, .92);
    color: var(--text);
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: border-color .16s ease, background .16s ease, transform .16s ease;
}

.embed-mode .icon-btn {
    width: 36px;
    height: 36px;
}

.icon-btn:hover {
    transform: translateY(-1px);
    border-color: var(--cyan);
}

.layout {
    width: min(1560px, 100%);
    margin: 0 auto;
    padding: 18px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, 460px);
    gap: 18px;
    flex: 1;
}

.embed-mode .layout {
    width: 100%;
    height: calc(100vh - 58px);
    min-height: 0;
    padding: 10px;
    gap: 10px;
    overflow: hidden;
}

.stage-panel,
.control-panel {
    border: 1px solid rgba(255, 255, 255, .08);
    background: rgba(10, 17, 24, .74);
    box-shadow: 0 24px 64px rgba(0, 0, 0, .26);
}

.stage-panel {
    min-height: 680px;
    display: grid;
    grid-template-rows: auto minmax(450px, 1fr) auto;
    overflow: hidden;
    border-radius: 10px;
}

.embed-mode .stage-panel {
    min-height: 0;
    height: 100%;
    grid-template-rows: auto minmax(240px, 1fr) auto;
}

.embed-mode .control-panel {
    height: 100%;
}

.stage-info {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    background: rgba(16, 24, 32, .82);
}

.embed-mode .stage-info {
    padding: 10px 12px;
}

.mission-title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 5px;
    min-width: 0;
}

.mission-title strong {
    font-size: 18px;
    font-weight: 900;
}

.pill {
    min-height: 24px;
    padding: 4px 9px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .10);
    background: rgba(255, 255, 255, .06);
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 800;
    line-height: 1;
    white-space: nowrap;
}

.mission-copy {
    margin: 0;
    color: var(--muted);
    line-height: 1.35;
    font-weight: 700;
}

.stat-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(72px, 1fr));
    gap: 8px;
}

.stat {
    min-width: 72px;
    border: 1px solid rgba(255, 255, 255, .08);
    background: rgba(5, 8, 12, .34);
    border-radius: 8px;
    padding: 8px 10px;
    text-align: center;
}

.embed-mode .stat {
    padding: 6px 8px;
}

.stat b {
    display: block;
    font-size: 18px;
    line-height: 1;
    color: var(--gold);
}

.stat span {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.scene-host {
    position: relative;
    min-height: 450px;
    background: #060b0f;
}

.embed-mode .scene-host {
    min-height: 240px;
}

#gameCanvas {
    width: 100%;
    height: 100%;
    display: block;
    outline: none;
}

.scene-caption {
    position: absolute;
    left: 16px;
    bottom: 14px;
    right: 16px;
    min-height: 42px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, .10);
    border-radius: 8px;
    background: rgba(6, 16, 20, .78);
    backdrop-filter: blur(10px);
    color: var(--text);
    font-weight: 800;
    pointer-events: none;
}

.scene-caption i {
    color: var(--cyan);
}

.mobile-drive {
    display: none;
    grid-template-columns: repeat(3, 48px);
    justify-content: center;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    background: rgba(16, 24, 32, .74);
}

.drive-btn {
    width: 48px;
    height: 42px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--panel-2);
    color: var(--text);
    cursor: pointer;
}

.drive-btn:disabled {
    opacity: .38;
    cursor: not-allowed;
}

.control-panel {
    border-radius: 10px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.operator {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    background: rgba(21, 31, 42, .74);
}

.embed-mode .operator {
    padding: 10px;
    grid-template-columns: 54px minmax(0, 1fr);
}

.operator-avatar {
    width: 76px;
    height: 76px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .12);
    background: linear-gradient(135deg, #101820, #173442);
    display: grid;
    place-items: center;
    overflow: hidden;
    position: relative;
    color: var(--cyan);
    font-size: 30px;
}

.embed-mode .operator-avatar {
    width: 54px;
    height: 54px;
}

.operator-avatar img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.operator h2 {
    margin: 0;
    font-size: 20px;
}

.operator p {
    margin: 5px 0 0;
    color: var(--muted);
    line-height: 1.35;
    font-weight: 700;
}

.unlock-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    background: rgba(255, 200, 87, .08);
}

.unlock-card span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.unlock-card b {
    color: var(--gold);
    font-family: "JetBrains Mono", monospace;
    overflow: hidden;
    text-overflow: ellipsis;
}

.command-tray {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    max-height: 190px;
    overflow: auto;
}

.embed-mode .command-tray {
    max-height: 150px;
    padding: 10px;
}

.cmd-btn {
    min-height: 38px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: rgba(6, 16, 20, .72);
    color: var(--cyan);
    cursor: pointer;
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    font-weight: 800;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cmd-btn:hover {
    border-color: var(--cyan);
    background: rgba(23, 214, 195, .08);
}

.cmd-btn.locked {
    opacity: .32;
    cursor: not-allowed;
}

.editor-shell {
    min-height: 330px;
    display: grid;
    grid-template-rows: auto 1fr;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.embed-mode .editor-shell {
    min-height: 0;
    flex: 1;
}

.editor-title {
    min-height: 38px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    color: var(--muted);
    background: #0c1218;
    font-size: 12px;
    font-weight: 900;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex: 0 0 auto;
}

.editor-body {
    min-height: 0;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    background: #060b0f;
}

.line-nums {
    padding: 10px 0;
    border-right: 1px solid rgba(255, 255, 255, .08);
    color: #52606a;
    font: 13px/1.6 "JetBrains Mono", monospace;
    text-align: right;
    overflow: hidden;
    user-select: none;
}

.ln {
    height: 20.8px;
    padding: 0 9px;
}

.ln.active {
    color: var(--ink);
    background: var(--gold);
    font-weight: 900;
}

.code-area {
    width: 100%;
    min-height: 100%;
    resize: none;
    border: 0;
    outline: 0;
    padding: 10px 12px;
    color: #99ffdf;
    background: transparent;
    caret-color: var(--gold);
    font: 13px/1.6 "JetBrains Mono", monospace;
    white-space: pre;
    tab-size: 2;
}

.action-row {
    display: grid;
    grid-template-columns: 1fr 1fr 44px;
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.action-btn {
    min-height: 44px;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 900;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    transition: transform .16s ease, filter .16s ease;
}

.action-btn:hover {
    transform: translateY(-1px);
}

.action-btn:disabled {
    transform: none;
    filter: grayscale(1);
    opacity: .55;
    cursor: not-allowed;
}

.run-btn {
    color: var(--ink);
    background: var(--green);
}

.reset-btn {
    color: var(--text);
    border-color: var(--line);
    background: var(--panel-2);
}

.mini-btn {
    border: 1px solid var(--line);
    background: var(--panel-2);
    color: var(--gold);
}

.console {
    min-height: 120px;
    max-height: 180px;
    overflow: auto;
    padding: 12px 14px;
    background: #060b0f;
    color: var(--muted);
    font: 12px/1.55 "JetBrains Mono", monospace;
}

.embed-mode .console {
    min-height: 82px;
    max-height: 120px;
}

.embed-mode .modal {
    max-height: calc(100vh - 24px);
}

.embed-mode .modal-body {
    overflow: auto;
}

.console div {
    margin-bottom: 4px;
}

.cl-ok {
    color: var(--green);
}

.cl-err {
    color: var(--red);
}

.cl-warn {
    color: var(--gold);
}

.cl-info {
    color: var(--muted);
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: none;
    place-items: center;
    padding: 18px;
    background: rgba(0, 0, 0, .62);
    backdrop-filter: blur(7px);
}

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

.modal {
    width: min(560px, 100%);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .10);
    background: #101820;
    box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
    overflow: hidden;
}

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.modal-head h3 {
    margin: 0;
    font-size: 20px;
}

.modal-body {
    padding: 16px 18px 18px;
    display: grid;
    gap: 12px;
}

.setting {
    display: grid;
    grid-template-columns: minmax(130px, .7fr) minmax(0, 1fr);
    align-items: center;
    gap: 12px;
}

.setting label {
    color: var(--muted);
    font-weight: 800;
}

.setting input[type="range"] {
    width: 100%;
    accent-color: var(--cyan);
}

.setting select,
.setting input[type="checkbox"] {
    accent-color: var(--cyan);
}

.setting select {
    width: 100%;
    min-height: 38px;
    border-radius: 8px;
    border: 1px solid var(--line);
    color: var(--text);
    background: #0a1118;
    padding: 0 10px;
}

.danger-btn {
    min-height: 42px;
    border-radius: 8px;
    border: 1px solid rgba(255, 107, 107, .45);
    background: rgba(255, 107, 107, .08);
    color: var(--red);
    cursor: pointer;
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.ref-list {
    display: grid;
    gap: 8px;
}

.ref-item {
    border: 1px solid var(--line);
    background: #0a1118;
    border-radius: 8px;
    padding: 10px 12px;
}

.ref-item code {
    color: var(--cyan);
    font-family: "JetBrains Mono", monospace;
    font-weight: 900;
}

.ref-item p {
    margin: 4px 0 0;
    color: var(--muted);
    line-height: 1.35;
}

.toast {
    position: fixed;
    top: 88px;
    left: 50%;
    z-index: 30;
    min-width: min(360px, calc(100vw - 32px));
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--ink);
    background: var(--green);
    text-align: center;
    font-weight: 900;
    transform: translate(-50%, -150px);
    transition: transform .32s cubic-bezier(.2, .9, .2, 1.2);
    box-shadow: 0 18px 36px rgba(0, 0, 0, .28);
    pointer-events: none;
}

.toast.show {
    transform: translate(-50%, 0);
}

.toast.err {
    color: #fff;
    background: var(--red);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, .04);
}

::-webkit-scrollbar-thumb {
    background: var(--line-strong);
    border-radius: 999px;
}

@media (max-width: 1160px) {
    .topbar {
        grid-template-columns: 1fr auto;
    }

    .level-strip {
        grid-column: 1 / -1;
        grid-row: 2;
        justify-content: flex-start;
    }

    .layout {
        grid-template-columns: 1fr;
    }

    .control-panel {
        min-height: 580px;
    }
}

@media (max-width: 960px) {
    .embed-mode .layout {
        grid-template-columns: 1fr;
        overflow: auto;
    }

    .embed-mode .stage-panel,
    .embed-mode .control-panel {
        height: auto;
    }

    .embed-mode .stage-panel {
        min-height: 560px;
        grid-template-rows: auto minmax(360px, 1fr) auto;
    }
}

@media (max-width: 720px) {
    .topbar {
        padding: 12px;
        gap: 12px;
    }

    .brand h1 {
        font-size: 23px;
    }

    .top-actions {
        gap: 8px;
    }

    .layout {
        padding: 10px;
        gap: 10px;
    }

    .stage-panel {
        min-height: 560px;
        grid-template-rows: auto 420px auto;
    }

    .stage-info {
        grid-template-columns: 1fr;
    }

    .stat-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .mobile-drive {
        display: grid;
    }

    .command-tray {
        grid-template-columns: 1fr;
    }

    .operator {
        grid-template-columns: 62px 1fr;
    }

    .operator-avatar {
        width: 62px;
        height: 62px;
    }

    .setting {
        grid-template-columns: 1fr;
        gap: 6px;
    }
}