:root {
    --space-950: #020711;
    --space-900: #07101f;
    --space-850: #0a1728;
    --panel: rgba(8, 24, 42, 0.88);
    --panel-bright: rgba(13, 39, 62, 0.92);
    --line: rgba(119, 212, 255, 0.2);
    --line-bright: rgba(119, 226, 255, 0.52);
    --text: #e8f8ff;
    --muted: #8aa8b8;
    --cyan: #43edff;
    --cyan-soft: #8df7ff;
    --orange: #ff9b50;
    --red: #ff526c;
    --green: #5dffc1;
    --yellow: #ffe072;
}

* {
    box-sizing: border-box;
}

body.orbit-page {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    color: var(--text);
    font-family: "Segoe UI", "Yu Gothic UI", Meiryo, sans-serif;
    background:
        radial-gradient(circle at 12% 8%, rgba(20, 104, 155, 0.24), transparent 30rem),
        radial-gradient(circle at 90% 92%, rgba(12, 95, 115, 0.2), transparent 34rem),
        linear-gradient(145deg, #02050b, var(--space-900) 52%, #030b16);
}

button,
select,
a {
    font: inherit;
}

button,
select {
    color: inherit;
}

button:focus-visible,
select:focus-visible,
a:focus-visible {
    box-shadow: 0 0 0 3px var(--space-950), 0 0 0 5px var(--cyan);
}

.orbit-shell {
    width: min(1480px, 100%);
    margin: 0 auto;
    padding: 22px clamp(12px, 2vw, 30px) 30px;
}

.orbit-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 16px;
    padding: 0 4px;
}

.orbit-header h1 {
    margin: 3px 0 0;
    font-size: clamp(1.65rem, 3vw, 2.8rem);
    line-height: 1;
    letter-spacing: 0.04em;
}

.eyebrow {
    margin: 0;
    color: var(--cyan);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.header-readout {
    display: grid;
    gap: 2px;
    min-width: 140px;
    padding-left: 18px;
    border-left: 1px solid var(--line-bright);
}

.header-readout span,
.timer-card > span,
.metric-card > span,
.mode-readout > span {
    color: var(--muted);
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.header-readout strong {
    color: var(--cyan-soft);
    font-family: Consolas, "SFMono-Regular", monospace;
}

.orbit-console {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: 14px;
}

.viewport-panel,
.telemetry-panel {
    border: 1px solid var(--line);
    background: linear-gradient(160deg, rgba(11, 30, 50, 0.93), rgba(4, 14, 26, 0.96));
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.viewport-panel {
    min-width: 0;
    padding: clamp(8px, 1.2vw, 14px);
}

.viewport {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3 / 2;
    min-height: 300px;
    border: 1px solid rgba(85, 219, 255, 0.33);
    background: var(--space-950);
    box-shadow: inset 0 0 40px rgba(25, 157, 204, 0.09);
    touch-action: none;
}

#orbit-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.canvas-legend {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 8px;
    font: 700 0.67rem Consolas, monospace;
    pointer-events: none;
}

.canvas-legend span {
    padding: 4px 7px;
    border: 1px solid currentColor;
    background: rgba(2, 7, 17, 0.72);
}

.legend-resource {
    color: var(--cyan);
}

.legend-danger {
    color: var(--orange);
}

.orbit-overlay {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: grid;
    place-items: center;
    padding: 18px;
    background: radial-gradient(circle, rgba(8, 31, 50, 0.62), rgba(1, 5, 12, 0.9));
}

.orbit-overlay[hidden] {
    display: none;
}

.overlay-card {
    width: min(500px, 100%);
    padding: clamp(20px, 4vw, 38px);
    border: 1px solid var(--line-bright);
    background: linear-gradient(150deg, rgba(11, 38, 61, 0.97), rgba(4, 17, 31, 0.98));
    box-shadow: 0 0 50px rgba(47, 214, 255, 0.12);
    text-align: center;
}

.overlay-card h2 {
    margin: 8px 0 14px;
    font-size: clamp(1.55rem, 4vw, 2.5rem);
    line-height: 1.17;
}

.overlay-card p:not(.eyebrow) {
    margin: 0 auto 18px;
    color: #b8ccd7;
    line-height: 1.75;
}

.overlay-card p b:first-of-type {
    color: var(--cyan);
}

.overlay-card p b:last-of-type {
    color: var(--orange);
}

.stage-picker {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    margin: 18px 0 10px;
    color: var(--muted);
    font-size: 0.83rem;
    text-align: left;
}

.stage-picker select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--line-bright);
    border-radius: 0;
    background: #071729;
}

.record-line {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 0.76rem;
}

.record-line b {
    color: var(--text);
}

.orbit-button,
.control-button,
.mode-button,
.upgrade-option {
    border: 1px solid var(--line-bright);
    border-radius: 0;
    color: var(--text);
    background: rgba(23, 67, 91, 0.35);
    cursor: pointer;
    transition: border-color 140ms ease, background 140ms ease, transform 100ms ease;
}

.orbit-button:hover,
.control-button:hover,
.mode-button:hover,
.upgrade-option:hover {
    border-color: var(--cyan);
    background: rgba(38, 104, 131, 0.44);
}

.orbit-button:active,
.control-button:active,
.mode-button:active,
.upgrade-option:active {
    transform: translateY(1px);
}

.orbit-button {
    min-height: 42px;
    padding: 9px 14px;
    font-weight: 750;
}

.orbit-button.primary {
    color: #021218;
    border-color: var(--cyan);
    background: linear-gradient(120deg, var(--cyan), #a0faff);
}

.overlay-card > .orbit-button.primary {
    width: 100%;
}

.flight-controls {
    display: grid;
    grid-template-columns: 1fr minmax(170px, 1.35fr) 1fr;
    gap: 10px;
    padding-top: 12px;
}

.control-button,
.mode-button {
    min-height: 58px;
    font-weight: 900;
}

.control-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--cyan-soft);
    font-size: 1.35rem;
}

.control-button span {
    font: 700 0.65rem Consolas, monospace;
    letter-spacing: 0.13em;
}

.mode-button {
    display: grid;
    place-content: center;
    gap: 2px;
    color: var(--cyan);
    border-color: var(--cyan);
    background: rgba(31, 185, 211, 0.12);
}

.mode-button.defense {
    color: var(--orange);
    border-color: var(--orange);
    background: rgba(255, 123, 50, 0.13);
}

.mode-button small {
    color: var(--muted);
    font-size: 0.65rem;
}

.telemetry-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
}

.telemetry-panel > section {
    padding: 13px;
    border: 1px solid var(--line);
    background: rgba(10, 31, 50, 0.56);
}

.panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    color: var(--muted);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.panel-title b {
    color: var(--green);
}

.mission-card h2 {
    margin: 9px 0 3px;
    font-size: 1.12rem;
}

.mission-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.55;
}

.timer-card strong {
    display: block;
    margin: 2px 0 7px;
    color: var(--cyan-soft);
    font: 800 clamp(1.8rem, 4vw, 2.7rem) Consolas, monospace;
}

.meter-track {
    overflow: hidden;
    height: 5px;
    background: rgba(255, 255, 255, 0.08);
}

.meter-track i {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--cyan);
    box-shadow: 0 0 10px currentColor;
    transition: width 160ms linear;
}

.metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.telemetry-panel > .metric-grid {
    padding: 0;
    border: 0;
    background: transparent;
}

.metric-card {
    min-width: 0;
    padding: 11px;
    border: 1px solid var(--line);
    background: rgba(10, 31, 50, 0.56);
}

.metric-card strong {
    display: block;
    overflow: hidden;
    margin: 4px 0 6px;
    font: 800 1.08rem Consolas, monospace;
    text-overflow: ellipsis;
}

.metric-card.hp .meter-track i {
    background: var(--green);
}

.metric-card.quota .meter-track i {
    background: var(--cyan);
}

.metric-card.combo strong {
    color: var(--yellow);
}

.telemetry-panel > .mode-readout {
    border-color: rgba(67, 237, 255, 0.48);
    box-shadow: inset 3px 0 0 var(--cyan);
}

.telemetry-panel > .mode-readout.defense {
    border-color: rgba(255, 155, 80, 0.48);
    box-shadow: inset 3px 0 0 var(--orange);
}

.mode-readout strong {
    display: block;
    margin-top: 4px;
    color: var(--cyan);
    font: 800 0.95rem Consolas, monospace;
}

.mode-readout.defense strong {
    color: var(--orange);
}

.mode-readout p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.73rem;
}

.upgrade-status dl {
    display: grid;
    gap: 7px;
    margin: 10px 0 0;
}

.upgrade-status dl div {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(119, 212, 255, 0.1);
}

.upgrade-status dt,
.upgrade-status dd {
    margin: 0;
    font-size: 0.74rem;
}

.upgrade-status dt {
    color: var(--muted);
}

.keyboard-help {
    color: var(--muted);
    font-size: 0.69rem;
}

.keyboard-help p {
    margin: 4px 0;
}

kbd {
    display: inline-block;
    min-width: 23px;
    margin-right: 3px;
    padding: 2px 5px;
    border: 1px solid var(--line);
    color: var(--text);
    background: #071522;
    font: 700 0.64rem Consolas, monospace;
    text-align: center;
}

.panel-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: auto;
}

.link-button {
    display: grid;
    place-items: center;
    text-decoration: none;
}

.upgrade-card {
    width: min(720px, 100%);
}

.upgrade-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.upgrade-option {
    display: grid;
    gap: 6px;
    min-height: 150px;
    padding: 15px 10px;
}

.upgrade-option:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.upgrade-icon {
    color: var(--cyan);
    font-size: 2rem;
}

.upgrade-option small {
    color: var(--muted);
    line-height: 1.45;
}

.result-score {
    display: block;
    margin: 8px 0 22px;
    color: var(--cyan-soft);
    font: 800 1.65rem Consolas, monospace;
}

.result-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
}

@media (max-width: 1020px) {
    .orbit-console {
        grid-template-columns: 1fr;
    }

    .telemetry-panel {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .mission-card,
    .metric-grid,
    .panel-actions {
        grid-column: span 2;
    }

    .keyboard-help {
        display: none;
    }
}

@media (max-width: 620px) {
    .orbit-shell {
        padding-inline: 8px;
    }

    .orbit-header {
        align-items: center;
    }

    .header-readout {
        min-width: 108px;
    }

    .viewport {
        min-height: 0;
    }

    .canvas-legend {
        display: none;
    }

    .orbit-overlay {
        position: fixed;
        z-index: 20;
        overflow-y: auto;
        align-items: start;
        padding: 24px 12px;
    }

    .flight-controls {
        grid-template-columns: 0.78fr 1.44fr 0.78fr;
    }

    .control-button span {
        display: none;
    }

    .telemetry-panel {
        grid-template-columns: 1fr;
    }

    .telemetry-panel > *,
    .mission-card,
    .metric-grid,
    .panel-actions {
        grid-column: 1;
    }

    .upgrade-grid,
    .result-actions {
        grid-template-columns: 1fr;
    }

    .upgrade-option {
        grid-template-columns: auto 1fr;
        align-items: center;
        min-height: 72px;
        text-align: left;
    }

    .upgrade-option small {
        grid-column: 2;
    }

    .overlay-card {
        margin: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto;
        transition-duration: 0.01ms;
    }
}