/* ═══════════════════════════════════════
   TOKENS — aligned with index.html
═══════════════════════════════════════ */
:root {
    --bg:           #05070d;
    --bg2:          #070a12;
    --bg-panel:     #0a0e17;
    --bg-card:      #0d111c;
    --border:       #1a2030;
    --border-glow:  #26e1ea;
    --cyan:         #26e1ea;
    --cyan-dim:     #0d9099;
    --red:          #ff4747;
    --amber:        #ffce3a;
    --green:        #3cff7a;
    --purple:       #b35cff;
    --pink:         #ff66a8;
    --yellow:       #ffce3a;
    --text:         #e6ecf4;
    --text-muted:   #8a95a8;
    --text-dim:     #4e5a6d;
    --font-hd:      'Chakra Petch', sans-serif;
    --font-mono:    'Share Tech Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.45;
    overflow: hidden;
    position: relative;
}
a { color: inherit; text-decoration: none; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ═══════════════════════════════════════
   BACKGROUND LAYERS
═══════════════════════════════════════ */
.bg-grid {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background-image:
        linear-gradient(rgba(38,225,234,0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(38,225,234,0.045) 1px, transparent 1px);
    background-size: 52px 52px;
}
.bg-aura {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background:
        radial-gradient(ellipse 55% 60% at 50% 45%, rgba(38,225,234,0.08) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 15% 92%, rgba(179,92,255,0.06) 0%, transparent 65%),
        radial-gradient(ellipse 30% 25% at 85% 8%, rgba(255,71,71,0.05) 0%, transparent 65%);
}
.vignette {
    position: fixed; inset: 0; pointer-events: none; z-index: 9998;
    box-shadow: inset 0 0 180px 20px rgba(0,0,0,0.85);
}
.scanlines {
    position: fixed; inset: 0; pointer-events: none; z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.09) 2px,
        rgba(0,0,0,0.09) 4px
    );
}

/* ═══════════════════════════════════════
   HUD CHROME (viewport overlays)
═══════════════════════════════════════ */
.hud-corners { position: fixed; inset: 0; pointer-events: none; z-index: 900; }
.hud-corners .hc {
    position: absolute;
    width: 22px; height: 22px;
    border: 1px solid var(--cyan);
    opacity: .75;
}
.hud-corners .hc-tl { top: 12px;    left: 12px;    border-right: none; border-bottom: none; }
.hud-corners .hc-tr { top: 12px;    right: 12px;   border-left:  none; border-bottom: none; }
.hud-corners .hc-bl { bottom: 12px; left: 12px;    border-right: none; border-top:    none; }
.hud-corners .hc-br { bottom: 12px; right: 12px;   border-left:  none; border-top:    none; }

.hud-topbar {
    position: fixed; top: 10px; left: 44px;
    z-index: 901; pointer-events: none;
    font-family: var(--font-mono);
    font-size: 0.72rem; letter-spacing: 2px;
    color: var(--text);
    display: flex; align-items: center; gap: .5rem;
}
.hud-topbar .ht-slash { color: var(--cyan); }
.hud-topbar .ht-idx   { color: var(--text); font-weight: 500; }
.hud-topbar .ht-u     { color: var(--cyan); animation: blink 1.2s step-end infinite; }

.hud-ticks {
    position: fixed; top: 60px; bottom: 60px;
    width: 14px; z-index: 900; pointer-events: none;
    display: flex; flex-direction: column; justify-content: space-between;
    opacity: .55;
}
.hud-ticks.hud-ticks-l { left: 14px; align-items: flex-start; }
.hud-ticks.hud-ticks-r { right: 14px; align-items: flex-end; }
.hud-ticks .ht-tick {
    display: block; height: 1px; background: var(--cyan);
}
.hud-ticks .ht-tick.w-s { width: 6px;  opacity: .55; }
.hud-ticks .ht-tick.w-m { width: 10px; opacity: .75; }
.hud-ticks .ht-tick.w-l { width: 14px; opacity: 1;   }

.hud-footer-meta {
    position: fixed; bottom: 10px; left: 44px; right: 44px;
    z-index: 901; pointer-events: none;
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--font-mono);
    font-size: 0.68rem; letter-spacing: 1.5px;
    color: var(--text-muted);
}
.hud-footer-meta .hfm-left,
.hud-footer-meta .hfm-right {
    display: flex; align-items: center; gap: .6rem;
}
.hud-footer-meta .hfm-sep { color: var(--border); }
.hud-footer-meta .hfm-accent { color: var(--cyan); }
.hud-footer-meta .hfm-muted { color: var(--text-dim); }

/* ═══════════════════════════════════════
   OUTER LAYOUT — panel wrapper + CRT body
═══════════════════════════════════════ */
.crt-shell {
    position: relative; z-index: 1;
    height: 100vh;
    padding: 58px 44px 42px;   /* leave room for HUD chrome */
    display: flex;
}

/* Reusable panel frame with corner brackets (same pattern as index) */
.panel {
    --corner: 18px;
    --corner-b: 1px;
    --corner-c: var(--cyan);
    position: relative;
    background: rgba(10,14,23,0.55);
    border: 1px solid var(--border);
    backdrop-filter: blur(3px);
    box-shadow: 0 0 0 1px rgba(38,225,234,0.04), 0 4px 30px rgba(0,0,0,0.6);
}
.panel::before,
.panel::after {
    content: "";
    position: absolute;
    left: -1px; right: -1px;
    height: var(--corner);
    pointer-events: none;
    background:
        linear-gradient(var(--corner-c),var(--corner-c)) top left   / var(--corner) var(--corner-b) no-repeat,
        linear-gradient(var(--corner-c),var(--corner-c)) top left   / var(--corner-b) var(--corner) no-repeat,
        linear-gradient(var(--corner-c),var(--corner-c)) top right  / var(--corner) var(--corner-b) no-repeat,
        linear-gradient(var(--corner-c),var(--corner-c)) top right  / var(--corner-b) var(--corner) no-repeat;
}
.panel::before { top: -1px; }
.panel::after  { bottom: -1px; transform: scaleY(-1); }

.crt {
    flex: 1 1 auto;
    display: flex; flex-direction: column;
    clip-path: polygon(
        14px 0, 100% 0,
        100% calc(100% - 14px), calc(100% - 14px) 100%,
        0 100%, 0 14px
    );
    overflow: hidden;
}

/* ═══════════════════════════════════════
   TOPBAR (HUD-style, replaces Mac dots)
═══════════════════════════════════════ */
.crt-topbar {
    display: flex; align-items: center;
    gap: 1rem;
    padding: 0.7rem 1.2rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(38,225,234,0.06) 0%, transparent 100%);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 2px;
    flex-shrink: 0;
    color: var(--text-muted);
}
.crt-topbar .tb-slash { color: var(--cyan); }
.crt-topbar .tb-title {
    font-family: var(--font-hd);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 3px;
    color: var(--text);
    text-transform: uppercase;
}
.crt-topbar .tb-title b { color: var(--cyan); font-weight: 700; }
.crt-topbar .tb-path { color: var(--text-dim); }
.crt-topbar .tb-status {
    display: inline-flex; align-items: center; gap: .4rem;
    color: var(--green);
    font-family: var(--font-mono);
}
.crt-topbar .tb-status::before {
    content: ""; display: inline-block;
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
    animation: blink 1.6s step-end infinite;
}

.back-link {
    margin-left: auto;
    font-family: var(--font-hd);
    font-weight: 600;
    font-size: 0.68rem;
    letter-spacing: 2px;
    color: var(--cyan);
    border: 1px solid var(--cyan);
    padding: 0.35rem 0.9rem;
    background: transparent;
    clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
    transition: background 0.2s, box-shadow 0.2s;
}
.back-link:hover {
    background: rgba(38,225,234,0.12);
    box-shadow: 0 0 16px rgba(38,225,234,0.4);
}

/* ═══════════════════════════════════════
   BODY — scrolling output
═══════════════════════════════════════ */
.crt-body {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 1.3rem 1.6rem 0.5rem;
}
.crt-body::-webkit-scrollbar { width: 6px; }
.crt-body::-webkit-scrollbar-track { background: transparent; }
.crt-body::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 3px; }

#output {
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--font-mono);
    color: var(--text);
}
#output .line         { padding: 0.05rem 0; }
#output .line-ok      { color: var(--green); }
#output .line-err     { color: var(--red); }
#output .line-warn    { color: var(--amber); }
#output .line-info    { color: var(--cyan); }
#output .line-sys     { color: var(--purple); }
#output .line-muted   { color: var(--text-muted); }
#output .line-echo    { color: var(--text-dim); font-style: italic; }
#output .ascii        {
    white-space: pre;
    color: var(--cyan);
    text-shadow: 0 0 8px rgba(38,225,234,0.45);
    font-family: var(--font-mono);
    line-height: 1.15;
    padding: 0.4rem 0;
}
#output .ascii.cyan   { color: var(--cyan);   text-shadow: 0 0 8px rgba(38,225,234,0.45); }
#output .ascii.purple { color: var(--purple); text-shadow: 0 0 8px rgba(179,92,255,0.45); }
#output .ascii.green  { color: var(--green);  text-shadow: 0 0 6px rgba(60,255,122,0.35); }

/* ═══════════════════════════════════════
   HINT + PROMPT FORM
═══════════════════════════════════════ */
.hint {
    padding: 0 1.6rem 0.55rem;
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1.5px;
    font-family: var(--font-mono);
}
.hint kbd {
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 0 5px;
    color: var(--cyan);
    background: rgba(38,225,234,0.06);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    margin: 0 1px;
}

.prompt-row {
    display: flex; align-items: center;
    padding: 0.7rem 1.6rem 1rem;
    border-top: 1px solid var(--border);
    background: linear-gradient(0deg, rgba(38,225,234,0.05) 0%, transparent 100%);
    flex-shrink: 0;
}
.prompt-label {
    color: var(--text-muted);
    white-space: nowrap;
    margin-right: 0.6rem;
    font-family: var(--font-mono);
}
.prompt-label .user { color: var(--cyan); text-shadow: 0 0 6px rgba(38,225,234,0.35); }
.prompt-label .host { color: var(--red); }
.prompt-label .path { color: var(--text-dim); }
#cmdInput {
    flex: 1 1 auto;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 15px;
    caret-color: var(--cyan);
    padding: 0;
}
#cmdInput:disabled { opacity: 0.4; }

.cursor-block {
    display: inline-block;
    width: 9px; height: 1.05em;
    background: var(--cyan);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}

/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media (max-width: 820px) {
    .hud-corners,
    .hud-ticks,
    .hud-footer-meta,
    .hud-topbar { display: none; }
    .crt-shell { padding: 12px 12px 12px; }
}
@media (max-width: 600px) {
    body { font-size: 13px; }
    .crt-topbar { padding: 0.5rem 0.8rem; font-size: 0.62rem; gap: 0.55rem; }
    .crt-topbar .tb-title { font-size: 0.65rem; letter-spacing: 2px; }
    .back-link  { font-size: 0.55rem; padding: 0.3rem 0.6rem; letter-spacing: 1.2px; }
    .crt-body   { padding: 0.9rem 0.9rem 0.3rem; }
    .prompt-row { padding: 0.5rem 0.9rem 0.8rem; }
    .hint       { padding: 0 0.9rem 0.5rem; font-size: 0.58rem; letter-spacing: 1px; }
    #output .ascii { font-size: 11px; line-height: 1.1; }
}

@media (prefers-reduced-motion: reduce) {
    .cursor-block,
    .hud-topbar .ht-u,
    .crt-topbar .tb-status::before {
        animation: none !important;
    }
}