/* ============================================================
   GLOBAL — reset, base, CRT effects, layout & terminal chrome.
   Токены (tokens.css) и атомы (output.css) подключаются отдельно.
   ============================================================ */

/* ---- Reset & base ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--green);
  /* System-first monospace stack — works offline */
  font-family: var(--font-mono, 'Courier New', Courier, 'Lucida Console', monospace);
  font-size: 14px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---- CRT effects (pointer-events: none overlays) ---- */
#crt-vignette {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 500;
  background: radial-gradient(ellipse at 50% 50%, transparent 55%, rgba(0,0,0,0.78) 100%);
}
#crt-scanlines {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 501;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent calc(var(--scanline) - 1px),
    rgba(0,0,0,0.28) calc(var(--scanline) - 1px),
    rgba(0,0,0,0.28) var(--scanline)
  );
}
@keyframes screenFlicker {
  0%, 93%, 100% { opacity: 1;    }
  94%           { opacity: 0.82; }
  95%           { opacity: 0.97; }
  96%           { opacity: 0.72; }
  97%           { opacity: 1;    }
  98%           { opacity: 0.88; }
  99%           { opacity: 1;    }
}
#terminal-root { animation: screenFlicker 10s infinite; }

/* ---- Main layout ---- */
#terminal-root {
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(12px, 3vw, 30px) clamp(12px, 3vw, 28px) 64px;
}

/* ---- Terminal frame / header ---- */
#terminal-frame {
  border: 1px solid var(--green-dim);
  padding: 16px 20px;
  margin-bottom: 24px;
  position: relative;
}
#terminal-frame::before {
  content: '[ ROBCO INDUSTRIES (TM) TERMLINK PROTOCOL ]';
  position: absolute; top: -9px; left: 12px;
  background: var(--bg); padding: 0 6px;
  font-size: 10px; color: var(--green-dim); letter-spacing: .05em;
}
#terminal-frame::after {
  content: '[ SESSION ACTIVE ]';
  position: absolute; top: -9px; right: 12px;
  background: var(--bg); padding: 0 6px;
  font-size: 10px; color: var(--green-dim);
}
#header-title {
  font-size: clamp(12px, 2vw, 16px); font-weight: bold;
  letter-spacing: .08em; line-height: 1.75;
  text-shadow: 0 0 8px var(--green), 0 0 20px var(--green-dim);
}
#header-sub {
  margin-top: 6px; font-size: 11px;
  color: var(--green-dim); letter-spacing: .04em;
}

/* ---- Output area ---- */
#output {
  min-height: 380px;
  margin-bottom: 16px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---- Input / prompt area ---- */
#input-zone {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 0 8px;
  border-top: 1px solid var(--green-dim);
}
#prompt-label {
  white-space: nowrap; flex-shrink: 0;
  text-shadow: 0 0 6px var(--green);
  user-select: none;
}
#cmd-input {
  flex: 1;
  background: transparent; border: none; outline: none;
  color: var(--green);
  font-family: inherit; font-size: inherit;
  caret-color: transparent;          /* block cursor drawn separately */
  text-shadow: 0 0 5px var(--green);
  letter-spacing: .03em;
}

/* Blinking block cursor */
@keyframes blink { 0%,49%{opacity:1} 50%,100%{opacity:0} }
#cursor-block {
  display: inline-block;
  width: 9px; height: 1.1em;
  background: var(--green);
  vertical-align: text-bottom; flex-shrink: 0;
  animation: blink 1s step-end infinite;
  box-shadow: 0 0 8px var(--green);
}

/* ---- Status bar (bottom) ---- */
#status-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 502;
  display: flex; justify-content: space-between; align-items: center;
  background: var(--green-dim); color: #000;
  font-size: 11px; padding: 3px 12px;
  user-select: none;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 3px; }

/* ---- Mobile adjustments ---- */
@media (max-width: 560px) {
  body { font-size: 12px; }
  #terminal-frame::before,
  #terminal-frame::after { display: none; }
  #terminal-frame { padding: 12px 14px; }
}