:root {
    --crt-background: #020702;
    --crt-screen: #071207;
    --phosphor: #8cff8c;
    --phosphor-bright: #c1ffc1;
    --phosphor-dim: #488448;
    --glow: rgba(125, 255, 125, 0.28);
    --scanline: rgba(0, 0, 0, 0.20);
}

* {
    box-sizing: border-box;
}

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

body {
    background: #000;
    color: var(--phosphor);
    font-family: "Courier New", Courier, monospace;
    overflow: hidden;
}

.crt {
    position: relative;
    width: 100%;
    height: 100vh;
    background:
        radial-gradient(
            ellipse at center,
            #0b190b 0%,
            var(--crt-screen) 55%,
            var(--crt-background) 100%
        );
    overflow: hidden;
    box-shadow:
        inset 0 0 100px rgba(0, 0, 0, 0.9);
}

.crt::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        repeating-linear-gradient(
            to bottom,
            transparent 0,
            transparent 2px,
            var(--scanline) 3px,
            var(--scanline) 4px
        );
    z-index: 10;
}

.crt::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(
            ellipse at center,
            transparent 50%,
            rgba(0, 0, 0, 0.72) 100%
        );
    z-index: 11;
}

.terminal {
    position: relative;
    z-index: 5;
    width: 100%;
    max-width: 1050px;
    height: 100vh;
    margin: auto;
    display: flex;
    flex-direction: column;
    padding: 38px 42px 30px;
    animation: crt-flicker 7s infinite;
    text-shadow:
        0 0 3px var(--glow),
        0 0 8px rgba(100, 255, 100, 0.12);
}

.terminal-output {
    flex: 1;
    overflow-y: auto;
    white-space: pre-wrap;
    font-size: 17px;
    line-height: 1.55;
    scrollbar-width: none;
}

.terminal-output::-webkit-scrollbar {
    display: none;
}

.line {
    min-height: 1.4em;
    margin: 0;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.system-line {
    color: var(--phosphor-dim);
}

.system-important {
    color: var(--phosphor);
}

.eliza-line {
    margin-top: 15px;
    color: var(--phosphor-bright);
}

.user-line {
    margin-top: 15px;
    color: var(--phosphor);
}

.error-line {
    color: var(--phosphor-bright);
}

.terminal-input {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    flex-shrink: 0;
    padding-top: 12px;
}

.prompt {
    flex-shrink: 0;
    font-size: 17px;
    line-height: 1.5;
    color: var(--phosphor-bright);
}

#messageInput {
    flex: 1;
    min-width: 0;
    max-height: 130px;
    overflow-y: auto;
    margin: 0;
    padding: 0;
    border: 0;
    outline: none;
    resize: none;
    background: transparent;
    color: var(--phosphor-bright);
    caret-color: transparent;
    font-family: "Courier New", Courier, monospace;
    font-size: 17px;
    line-height: 1.5;
    text-shadow:
        0 0 4px var(--glow);
}

.block-cursor {
    display: inline-block;
    width: 10px;
    height: 19px;
    margin-top: 3px;
    background: var(--phosphor-bright);
    box-shadow:
        0 0 8px var(--glow);
    animation:
        cursor-blink
        0.9s
        steps(1)
        infinite;
}

.hidden {
    display: none;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@keyframes cursor-blink {
    0%,
    48% {
        opacity: 1;
    }

    49%,
    100% {
        opacity: 0;
    }
}

@keyframes crt-flicker {
    0% {
        opacity: 1;
    }

    3% {
        opacity: 0.988;
    }

    5% {
        opacity: 1;
    }

    23% {
        opacity: 0.996;
    }

    25% {
        opacity: 1;
    }

    76% {
        opacity: 0.992;
    }

    78% {
        opacity: 1;
    }

    100% {
        opacity: 1;
    }
}

@media (max-width: 700px) {
    .terminal {
        padding: 24px 18px 20px;
    }

    .terminal-output,
    .prompt,
    #messageInput {
        font-size: 15px;
    }

    .block-cursor {
        width: 9px;
        height: 17px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .terminal,
    .block-cursor {
        animation: none;
    }

    .block-cursor {
        opacity: 1;
    }
}


/* --------------------------------------------------
   ERROR PAGES
-------------------------------------------------- */

.terminal-link {
    color: var(--phosphor-bright);
    text-decoration: none;
    border-bottom: 1px dashed var(--phosphor-dim);
}

.terminal-link:hover,
.terminal-link:focus {
    color: var(--phosphor);
    border-bottom-color: var(--phosphor-bright);
    outline: none;
    text-shadow:
        0 0 6px var(--glow),
        0 0 12px var(--glow);
}