/* NODE — UNHAVE Experiment #003 */

:root {
    --bg: #090b09;
    --surface: #0d100d;
    --text: #b8c9b5;
    --bright: #e0eadc;
    --muted: #667064;
    --green: #82d173;
    --amber: #d8ad63;
    --line: #293128;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Courier New", Courier, monospace;
    font-size: 14px;
    line-height: 1.6;
}

.node {
    width: min(760px, calc(100% - 32px));
    margin: 0 auto;
    padding: 70px 0;
}


/* HEADER */

.node-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
}

.system-label {
    color: var(--muted);
}

.node-header h1 {
    display: inline;
    margin: 0;
    color: var(--green);
    font-size: 30px;
    font-weight: 400;
    letter-spacing: .12em;
}

.node-header p {
    margin: 5px 0 0;
    color: var(--muted);
}

.online {
    color: var(--muted);
    font-size: 12px;
}

.online-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
}


/* NAVIGATION */

.terminal-nav {
    display: flex;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
}

button,
select {
    font: inherit;
}

.terminal-nav button,
.reply {
    padding: 0;
    border: 0;
    background: none;
    color: var(--muted);
    cursor: pointer;
}

.terminal-nav button:hover,
.terminal-nav button.active,
.reply:hover {
    color: var(--green);
}


/* BOARD */

.section-title {
    margin: 30px 0 8px;
    color: var(--amber);
    letter-spacing: .05em;
}

.signal {
    padding: 25px 0;
    border-bottom: 1px dashed var(--line);
}

.signal-meta {
    display: flex;
    justify-content: space-between;
}

.handle {
    color: var(--bright);
}

.signal-meta time {
    color: var(--muted);
}

.signal-tags {
    display: flex;
    gap: 10px;
    margin-top: 3px;
    color: var(--green);
    font-size: 12px;
}

.signal p {
    max-width: 620px;
    margin: 15px 0;
    color: var(--text);
}

.reply {
    color: var(--muted);
    font-size: 12px;
}


/* TRANSMIT */

.transmit {
    margin-top: 35px;
    padding-top: 5px;
}

.transmit-options {
    display: flex;
    gap: 28px;
    margin: 20px 0 14px;
    color: var(--muted);
}

select {
    border: 0;
    border-bottom: 1px solid var(--line);
    outline: none;
    background: transparent;
    color: var(--green);
}

textarea {
    width: 100%;
    min-height: 110px;
    padding: 16px;
    resize: vertical;

    border: 1px solid var(--line);
    outline: none;

    background: var(--surface);
    color: var(--bright);

    font: inherit;
    line-height: 1.5;
}

textarea:focus {
    border-color: var(--green);
}

textarea::placeholder {
    color: var(--muted);
}

.transmit-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

#character-count {
    color: var(--muted);
    font-size: 11px;
}

#transmit-button {
    border: 0;
    background: none;
    color: var(--green);
    cursor: pointer;
    font: inherit;
}

#transmit-button:hover {
    color: var(--bright);
}


/* FOOTER */

.node-footer {
    margin-top: 70px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    text-align: center;
    color: var(--muted);
    font-size: 11px;
}

.node-footer .mantra {
    margin: 18px 0;
    color: var(--amber);
    font-size: 13px;
}


/* MOBILE */

@media (max-width: 600px) {
    .node {
        width: calc(100% - 28px);
        padding: 35px 0;
    }

    .node-header {
        display: block;
    }

    .online {
        margin-top: 15px;
    }

    .terminal-nav {
        gap: 12px;
        overflow-x: auto;
    }

    .transmit-options {
        flex-direction: column;
        gap: 8px;
    }
}

/* ---------- Terminal Feedback ---------- */

.terminal-status {
    height: 24px;
    margin-top: 12px;

    color: var(--green);

    opacity: 0;
    transition: opacity .2s ease;
}

.terminal-status.visible {
    opacity: 1;
}


/* ---------- New Signal ---------- */

.new-signal {
    animation: signal-arrive .6s ease;
}

@keyframes signal-arrive {

    0% {
        opacity: 0;
        transform: translateY(-6px);
        background: rgba(130, 209, 115, .12);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
        background: transparent;
    }
}


#transmit-button:disabled {
    opacity: .5;
    cursor: wait;
}

.system-message {
    padding: 12px 0;
    color: var(--muted);
    font-size: 11px;
}

.signal[hidden] {
    display: none;
}

/* ---------- Operators ---------- */

.people-panel {
    margin-top: 30px;
}

.operator {
    display: grid;
    grid-template-columns: 20px 130px 1fr auto;
    gap: 10px;

    padding: 13px 0;
    border-bottom: 1px dashed var(--line);

    align-items: center;
}

.operator-status {
    color: var(--green);
    font-size: 9px;
}

.operator strong {
    color: var(--bright);
    font-weight: normal;
}

.operator > span:nth-of-type(2) {
    color: var(--muted);
}

.view-operator,
.signal-operator {
    border: 0;
    background: none;
    color: var(--green);
    font: inherit;
    cursor: pointer;
}

.operator-file {
    margin-top: 35px;
    padding: 22px;
    border: 1px solid var(--line);
    background: var(--surface);
}

.operator-file h2 {
    margin: 8px 0 0;
    color: var(--green);
    font-size: 20px;
    font-weight: normal;
}

.operator-file .location {
    margin-top: 2px;
    color: var(--muted);
}

.operator-file dl {
    margin: 25px 0;
}

.operator-file dt {
    margin-top: 14px;
    color: var(--amber);
}

.operator-file dd {
    margin: 2px 0 0;
    color: var(--text);
}

@media (max-width: 600px) {
    .operator {
        grid-template-columns: 15px 1fr auto;
    }

    .operator > span:nth-of-type(2) {
        display: none;
    }
}

.close-operator {
    margin-left: 15px;
    border: 0;
    background: none;
    color: var(--muted);
    font: inherit;
    cursor: pointer;
}

.close-operator:hover {
    color: var(--amber);
}

/* ---------- CRT atmosphere ---------- */

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 999;

    background: repeating-linear-gradient(
        0deg,
        rgba(255,255,255,.018) 0px,
        rgba(255,255,255,.018) 1px,
        transparent 1px,
        transparent 3px
    );

    opacity: .35;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 998;

    background: radial-gradient(
        ellipse at center,
        transparent 50%,
        rgba(0,0,0,.35) 100%
    );
}


/* ---------- Terminal details ---------- */

.node-header h1 {
    text-shadow: 0 0 12px rgba(130, 209, 115, .25);
}

.system-label::before {
    content: "> ";
    color: var(--green);
}

.section-title::after {
    content: "█";
    margin-left: 5px;
    color: var(--green);
    animation: cursor-blink 1.1s steps(1) infinite;
}

@keyframes cursor-blink {
    50% {
        opacity: 0;
    }
}


/* ---------- Selection ---------- */

::selection {
    background: var(--green);
    color: var(--bg);
}


/* ---------- Slight terminal flicker ---------- */

.node {
    animation: terminal-boot .45s ease-out;
}

@keyframes terminal-boot {
    from {
        opacity: 0;
        transform: translateY(3px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}