:root {
    --null-bg: #020504;
    --null-panel: rgba(4, 12, 9, 0.94);
    --null-green: #75ff9b;
    --null-green-dim: #4cae68;
    --null-amber: #ffd36a;
    --null-red: #ff5266;
    --null-line: rgba(117, 255, 155, 0.2);
    --null-muted: #91a598;
}

* {
    box-sizing: border-box;
}

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

body.null-page {
    color: #d8ffe2;
    background:
        radial-gradient(circle at 50% -20%, rgba(37, 121, 66, 0.25), transparent 45%),
        linear-gradient(180deg, #06100b 0%, var(--null-bg) 70%);
    font-family: Consolas, "Courier New", monospace;
    overflow-x: hidden;
}

body.null-page::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 10;
    pointer-events: none;
    opacity: 0.16;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent 3px,
        rgba(117, 255, 155, 0.18) 4px
    );
}

.null-shell {
    width: min(920px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 28px 0 48px;
}

.null-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
    color: var(--null-muted);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.null-topbar a {
    color: var(--null-muted);
    text-decoration: none;
}

.null-topbar a:hover,
.null-topbar a:focus-visible {
    color: var(--null-green);
}

.null-progress {
    display: flex;
    gap: 6px;
}

.null-progress span {
    width: 24px;
    height: 4px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.12);
}

.null-progress span.active {
    background: var(--null-green);
    box-shadow: 0 0 10px rgba(117, 255, 155, 0.7);
}

.null-terminal {
    position: relative;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--null-line);
    border-radius: 8px;
    background: var(--null-panel);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.75), inset 0 0 80px rgba(36, 118, 61, 0.05);
}

.null-terminal::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(90deg, transparent, rgba(117, 255, 155, 0.025), transparent);
    animation: nullSweep 6s linear infinite;
}

@keyframes nullSweep {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

.null-windowbar {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--null-line);
    color: var(--null-muted);
    font-size: 12px;
}

.null-windowbar i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #284032;
}

.null-windowbar i:first-child {
    background: var(--null-red);
}

.null-windowbar i:nth-child(2) {
    background: var(--null-amber);
}

.null-windowbar i:nth-child(3) {
    background: var(--null-green-dim);
}

.null-window-title {
    min-width: 0;
    margin-left: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.null-content {
    position: relative;
    z-index: 1;
    padding: clamp(24px, 5vw, 54px);
}

.null-kicker {
    margin: 0 0 14px;
    color: var(--null-green);
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.null-title {
    max-width: 760px;
    margin: 0 0 20px;
    color: #effff3;
    font-size: clamp(30px, 7vw, 64px);
    line-height: 0.98;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    text-shadow: 0 0 28px rgba(117, 255, 155, 0.18);
}

.null-title.small {
    font-size: clamp(28px, 5vw, 48px);
}

.null-copy {
    max-width: 680px;
    overflow-wrap: anywhere;
    color: var(--null-muted);
    font-family: Inter, system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.7;
}

.null-copy strong {
    color: #f2fff5;
}

.null-manifest {
    margin: 28px 0;
    padding: 18px;
    border-left: 2px solid var(--null-green);
    background: rgba(117, 255, 155, 0.05);
    color: #c3d7c8;
    line-height: 1.7;
}

.null-manifest span {
    color: var(--null-amber);
}

.null-memory {
    margin: 22px 0;
    padding: 16px 18px;
    border: 1px solid rgba(255, 211, 106, 0.24);
    background: rgba(255, 211, 106, 0.045);
    color: #b9aa7d;
    font-family: Inter, system-ui, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

.null-memory::before {
    content: "MEMORY SHARD // ";
    color: var(--null-amber);
    font: 11px Consolas, "Courier New", monospace;
    letter-spacing: 0.1em;
}

.null-binary {
    margin: 26px 0;
    padding: 24px;
    border: 1px solid var(--null-line);
    background: #010403;
    color: var(--null-green);
    font-size: clamp(16px, 3vw, 26px);
    line-height: 1.9;
    letter-spacing: 0.08em;
    text-align: center;
    overflow-wrap: anywhere;
    text-shadow: 0 0 12px rgba(117, 255, 155, 0.25);
}

.null-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.null-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    border: 1px solid var(--null-green-dim);
    border-radius: 4px;
    color: #031007;
    background: var(--null-green);
    font: 700 13px/1 Consolas, "Courier New", monospace;
    letter-spacing: 0.06em;
    text-decoration: none;
    text-transform: uppercase;
    cursor: pointer;
    transition: 150ms ease;
}

.null-button:hover,
.null-button:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(117, 255, 155, 0.35);
}

.null-button.secondary {
    color: var(--null-green);
    background: transparent;
}

.null-button:disabled {
    opacity: 0.32;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.null-form {
    display: grid;
    min-width: 0;
    gap: 16px;
    max-width: 520px;
    margin-top: 30px;
}

.null-field {
    display: grid;
    gap: 7px;
}

.null-field label,
.null-control label {
    color: var(--null-green-dim);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.null-field input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid rgba(117, 255, 155, 0.3);
    border-radius: 4px;
    outline: none;
    color: #edfff2;
    background: #020705;
    font: 16px Consolas, "Courier New", monospace;
}

.null-field input:focus {
    border-color: var(--null-green);
    box-shadow: 0 0 0 3px rgba(117, 255, 155, 0.08);
}

.null-status {
    min-height: 24px;
    margin: 12px 0 0;
    color: var(--null-red);
    font-size: 13px;
}

.null-status.success {
    color: var(--null-green);
}

.null-hints {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px dashed var(--null-line);
}

.null-hint-output {
    min-height: 22px;
    margin-top: 12px;
    color: var(--null-amber);
    font-size: 13px;
    line-height: 1.55;
}

.null-image-frame {
    position: relative;
    margin: 28px 0 18px;
    border: 1px solid var(--null-line);
    background: #000;
    overflow: hidden;
}

.null-image-frame img {
    display: block;
    width: 100%;
    filter: contrast(100%) brightness(28%);
}

.null-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 18px 0 8px;
}

.null-control {
    display: grid;
    gap: 8px;
}

.null-control input {
    accent-color: var(--null-green);
}

.null-complete {
    display: none;
    margin-top: 24px;
    padding: 20px;
    border: 1px solid var(--null-green);
    background: rgba(117, 255, 155, 0.07);
}

.null-complete.visible {
    display: block;
}

.null-lab {
    position: relative;
    box-sizing: border-box;
    margin: 28px 0;
    padding: 20px;
    border: 1px solid var(--null-line);
    background: rgba(0, 0, 0, 0.36);
}

.null-lab.touch-resizable {
    min-width: 46%;
    max-width: 100%;
    padding-right: 48px;
    margin-right: auto;
    container-type: inline-size;
}

.null-resize-grip {
    position: absolute;
    top: -1px;
    right: 0;
    bottom: -1px;
    width: 38px;
    padding: 0;
    border: 0;
    border-left: 1px solid var(--null-green-dim);
    outline: none;
    color: var(--null-green);
    background: rgba(117, 255, 155, 0.09);
    box-shadow: -8px 0 18px rgba(117, 255, 155, 0.08);
    cursor: ew-resize;
    touch-action: none;
}

.null-resize-grip::before {
    content: "";
    position: absolute;
    top: 0;
    right: 37px;
    bottom: 0;
    width: 1px;
    background: var(--null-green-dim);
    box-shadow: 0 0 12px rgba(117, 255, 155, 0.36);
}

.null-resize-grip::after {
    content: "↔";
    position: absolute;
    top: 12px;
    left: 50%;
    color: var(--null-green);
    font: 700 16px/1 Consolas, "Courier New", monospace;
    transform: translateX(-50%);
}

.null-resize-grip span {
    position: absolute;
    top: 50%;
    left: 50%;
    color: var(--null-green);
    font: 700 8px/1 Consolas, "Courier New", monospace;
    letter-spacing: 0.12em;
    writing-mode: vertical-rl;
    transform: translate(-50%, -50%);
    text-orientation: mixed;
}

.null-resize-grip span {
    pointer-events: none;
}

.null-resize-grip:focus-visible {
    background: rgba(117, 255, 155, 0.08);
}

@media (max-width: 800px) {
    .null-lab.touch-resizable {
        padding: 12px 48px 12px 12px;
    }

    .null-lab.touch-resizable .null-lab-header {
        gap: 6px;
        font-size: clamp(8px, 3cqw, 11px);
    }

    .null-lab.touch-resizable .null-fragment-display {
        min-height: 100px;
        font-size: clamp(18px, 14cqw, 48px);
    }

    .null-lab.touch-resizable .null-fragment-slots {
        gap: 3px;
    }

    .null-lab.touch-resizable .null-fragment-slots span {
        min-width: 0;
        font-size: clamp(7px, 3cqw, 10px);
        overflow: hidden;
    }
}

.null-lab-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
    color: var(--null-muted);
    font-size: 12px;
    text-transform: uppercase;
}

.null-meter {
    color: var(--null-amber);
}

.null-fragment-display {
    min-height: 130px;
    display: grid;
    place-items: center;
    border: 1px dashed rgba(117, 255, 155, 0.25);
    color: var(--null-green);
    font-size: clamp(24px, 6vw, 54px);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-align: center;
    text-shadow: 0 0 18px rgba(117, 255, 155, 0.35);
}

.null-fragment-slots {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.null-fragment-slots span {
    min-height: 38px;
    display: grid;
    place-items: center;
    border: 1px solid var(--null-line);
    color: #334b3b;
    font-size: 12px;
}

.null-fragment-slots span.found {
    color: var(--null-green);
    background: rgba(117, 255, 155, 0.06);
}

.null-range-wide {
    width: 100%;
    margin-top: 18px;
    accent-color: var(--null-green);
}

.null-log {
    margin: 24px 0;
    padding: 18px;
    border: 1px solid var(--null-line);
    background: #010403;
    color: var(--null-muted);
    font-size: 13px;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

.null-log strong {
    color: var(--null-green);
}

.null-log .warning {
    color: var(--null-amber);
}

.null-stereo-stage {
    position: relative;
    margin: 26px 0 16px;
    border: 1px solid var(--null-line);
    background: #010101;
    overflow: hidden;
}

.null-filter-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
    pointer-events: none;
}

.null-stereo-stage img {
    display: block;
    width: 100%;
    height: auto;
}

.null-tool-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0 6px;
}

.null-tool-row [data-channel].active {
    border-color: var(--null-green);
    color: var(--null-green);
    box-shadow: 0 0 16px rgba(117, 255, 155, 0.16);
}

.null-phase-control {
    margin: 16px 0 24px;
    padding: 14px 16px;
    border: 1px solid var(--null-line);
    background: rgba(117, 255, 155, 0.025);
}

.null-audio-panel {
    margin: 26px 0;
    padding: 22px;
    border: 1px solid var(--null-line);
    background:
        repeating-linear-gradient(90deg, transparent 0, transparent 27px, rgba(117, 255, 155, 0.035) 28px),
        #010403;
}

.null-wave {
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--null-line);
}

.null-wave i {
    width: 3px;
    height: 12px;
    background: var(--null-green-dim);
    animation: nullWave 1.2s ease-in-out infinite paused;
}

.null-wave.playing i {
    animation-play-state: running;
}

.null-wave i:nth-child(3n) { animation-delay: -0.3s; }
.null-wave i:nth-child(4n) { animation-delay: -0.7s; }
.null-wave i:nth-child(5n) { animation-delay: -1s; }

@keyframes nullWave {
    0%, 100% { height: 10px; opacity: 0.4; }
    50% { height: 68px; opacity: 1; }
}

.null-balance-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    color: var(--null-muted);
    font-size: 11px;
}

.null-radio-status {
    margin-top: 14px;
    color: var(--null-amber);
    font-size: 13px;
    letter-spacing: 0.12em;
    overflow-wrap: anywhere;
}

.null-split-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 24px 0;
}

.null-split-panel {
    min-width: 0;
    border: 1px solid var(--null-line);
    background: #010403;
}

.null-split-panel header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 9px 12px;
    border-bottom: 1px solid var(--null-line);
    color: var(--null-muted);
    font-size: 11px;
}

.null-split-panel a {
    color: var(--null-green);
}

.null-split-panel iframe {
    display: block;
    width: 100%;
    height: 310px;
    border: 0;
    background: #010403;
}

.null-process-page {
    min-height: 100vh;
    padding: 18px;
    color: #d8ffe2;
    background: #010403;
    font-family: Consolas, "Courier New", monospace;
}

.null-process-title {
    margin: 0 0 14px;
    color: var(--null-green);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.null-keypad {
    display: grid;
    grid-template-columns: repeat(3, 54px);
    grid-template-areas: ". up ." "left down right";
    justify-content: center;
    gap: 8px;
    margin-top: 34px;
}

.null-keypad button {
    width: 54px;
    height: 54px;
    border: 1px solid var(--null-green-dim);
    color: var(--null-green);
    background: #041008;
    font-size: 22px;
    cursor: pointer;
}

.null-keypad button:hover,
.null-keypad button:focus-visible {
    background: rgba(117, 255, 155, 0.12);
}

.null-keypad [data-key="ArrowUp"] { grid-area: up; }
.null-keypad [data-key="ArrowLeft"] { grid-area: left; }
.null-keypad [data-key="ArrowDown"] { grid-area: down; }
.null-keypad [data-key="ArrowRight"] { grid-area: right; }

.null-process-log {
    min-height: 190px;
    padding: 12px;
    border: 1px dashed var(--null-line);
    color: var(--null-muted);
    font-size: 12px;
    line-height: 1.65;
    overflow: auto;
}

.null-process-code {
    margin-top: 14px;
    color: var(--null-green);
    font-size: 24px;
    text-align: center;
    text-shadow: 0 0 14px rgba(117, 255, 155, 0.5);
}

.null-cipher {
    margin: 26px 0;
    padding: clamp(20px, 5vw, 38px);
    border: 1px solid var(--null-line);
    background: #010403;
    text-align: center;
}

.null-cipher-label {
    color: var(--null-muted);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.null-cipher-text {
    margin: 18px 0;
    color: var(--null-green);
    font-size: clamp(28px, 7vw, 62px);
    letter-spacing: 0.16em;
    overflow-wrap: anywhere;
    text-shadow: 0 0 18px rgba(117, 255, 155, 0.3);
}

.null-ending-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 28px;
}

.null-ending-choice {
    min-height: 150px;
    padding: 18px;
    border: 1px solid var(--null-line);
    color: var(--null-muted);
    background: rgba(0, 0, 0, 0.28);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.null-ending-choice strong {
    display: block;
    margin-bottom: 12px;
    color: var(--null-green);
    font-size: 18px;
}

.null-ending-choice:hover,
.null-ending-choice:focus-visible {
    border-color: var(--null-green);
    background: rgba(117, 255, 155, 0.07);
}

.null-ending-result {
    display: none;
    margin-top: 24px;
    padding: 22px;
    border-left: 3px solid var(--null-green);
    background: rgba(117, 255, 155, 0.06);
}

.null-ending-result.visible {
    display: block;
}

.null-cursor::after {
    content: "_";
    animation: nullBlink 0.85s steps(1) infinite;
}

@keyframes nullBlink {
    50% { opacity: 0; }
}

@media (max-width: 620px) {
    .null-shell {
        width: calc(100vw - 18px);
        max-width: 920px;
        padding-top: 12px;
    }

    .null-topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .null-content {
        padding: 24px 18px 30px;
    }

    .null-controls {
        grid-template-columns: 1fr;
    }

    .null-split-grid,
    .null-ending-grid {
        grid-template-columns: 1fr;
    }

    .null-split-panel iframe {
        height: 280px;
    }

    .null-button {
        width: 100%;
    }
}