/* ==========================================================================
   SPECTER CRT Terminal — Style & Atmospheric Shaders
   ========================================================================== */

:root {
  --font-main: 'Share Tech Mono', 'VT323', monospace;
  --font-display: 'VT323', monospace;

  /* Green Phosphor (P1 Default) */
  --color-phosphor: #33ff66;
  --color-phosphor-dim: #1f9940;
  --color-phosphor-glow: rgba(51, 255, 102, 0.45);
  --color-phosphor-bright: #adffb8;
  --color-bg: #050d08;
  --color-screen: #0a160d;
  --color-bezel: #121415;
  --color-bezel-border: #222629;
  --color-alert: #ff3344;
  --color-alert-glow: rgba(255, 51, 68, 0.6);
  --color-warn: #ffb000;

  --scanline-opacity: 0.35;
  --flicker-opacity: 0.04;
  --curvature: 12px;
}

/* Theme: Amber Phosphor (P3) */
body.theme-amber {
  --color-phosphor: #ffb000;
  --color-phosphor-dim: #996900;
  --color-phosphor-glow: rgba(255, 176, 0, 0.45);
  --color-phosphor-bright: #ffe08a;
  --color-bg: #0d0a04;
  --color-screen: #161208;
}

/* Theme: Cyan / Electric Ghost (P4) */
body.theme-cyan {
  --color-phosphor: #00e5ff;
  --color-phosphor-dim: #008ba3;
  --color-phosphor-glow: rgba(0, 229, 255, 0.45);
  --color-phosphor-bright: #b3f5ff;
  --color-bg: #040c0e;
  --color-screen: #07151a;
}

/* Theme: Red Alarm (Exorcism State) */
body.theme-red {
  --color-phosphor: #ff3344;
  --color-phosphor-dim: #991f28;
  --color-phosphor-glow: rgba(255, 51, 68, 0.6);
  --color-phosphor-bright: #ffb3b8;
  --color-bg: #140506;
  --color-screen: #20080a;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--color-bg);
  font-family: var(--font-main);
  color: var(--color-phosphor);
  text-shadow: 0 0 6px var(--color-phosphor-glow);
  user-select: text;
}

/* CRT Monitor Outer Chassis */
.crt-bezel {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  padding: 16px;
  background: radial-gradient(circle at center, #1b1f24 0%, #0d0f11 100%);
  box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.9);
}

/* Inner Screen Container with Curved Bezel */
.crt-screen {
  position: relative;
  width: 100%;
  max-width: 1240px;
  height: 94vh;
  background-color: var(--color-screen);
  border: 18px solid var(--color-bezel);
  border-radius: 28px;
  box-shadow: 
    0 0 50px rgba(0, 0, 0, 0.95),
    inset 0 0 40px rgba(0, 0, 0, 0.8),
    inset 0 0 120px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.3s ease, filter 0.15s ease;
}

/* CRT Shader Layers */
.crt-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 20;
}

/* 1. Fine Scanlines */
.scanlines {
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.7) 50%
  ),
  linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.03),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.03)
  );
  background-size: 100% 4px, 6px 100%;
  opacity: var(--scanline-opacity);
}

/* 2. Glass Vignette & Barrel Curvature Lighting */
.vignette {
  background: radial-gradient(
    circle at center,
    transparent 55%,
    rgba(0, 0, 0, 0.4) 80%,
    rgba(0, 0, 0, 0.85) 100%
  );
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.85);
}

/* 3. Subtle CRT Refresh Flicker */
.flicker {
  opacity: var(--flicker-opacity);
  background: white;
  animation: crtFlicker 0.12s infinite;
}

@keyframes crtFlicker {
  0%   { opacity: 0.02; }
  50%  { opacity: 0.045; }
  100% { opacity: 0.02; }
}

/* Glitch Layer for Entity Manifestations */
.glitch-layer {
  opacity: 0;
  background: rgba(255, 0, 50, 0.1);
  mix-blend-mode: screen;
  transition: opacity 0.1s ease;
}

.glitch-active {
  animation: glitchDistort 0.25s infinite alternate ease-in-out;
  opacity: 0.75 !important;
}

@keyframes glitchDistort {
  0% {
    transform: translate(0, 0) skew(0deg);
    filter: drop-shadow(-3px 0 red) drop-shadow(3px 0 cyan);
  }
  20% {
    transform: translate(-3px, 2px) skew(-1.5deg);
    filter: drop-shadow(4px -1px red) drop-shadow(-4px 1px cyan);
  }
  40% {
    transform: translate(2px, -3px) skew(1deg);
  }
  60% {
    transform: translate(-4px, 1px) skew(-2deg);
    filter: drop-shadow(-5px 2px red) drop-shadow(5px -2px blue);
  }
  80% {
    transform: translate(3px, 3px) skew(0.5deg);
  }
  100% {
    transform: translate(0, -1px) skew(0deg);
  }
}

/* Header Diagnostic Bar */
.terminal-header {
  height: 42px;
  background: rgba(0, 0, 0, 0.45);
  border-bottom: 1px solid var(--color-phosphor-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: 0.85rem;
  letter-spacing: 1px;
  z-index: 10;
  flex-shrink: 0;
}

.header-left, .header-center, .header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.indicator-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  background: var(--color-phosphor);
  box-shadow: 0 0 8px var(--color-phosphor);
  animation: ledPulse 1.8s infinite ease-in-out;
}

@keyframes ledPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.indicator-led.spectral {
  background: var(--color-alert);
  box-shadow: 0 0 10px var(--color-alert);
  animation: ledGlitch 0.2s infinite;
}

@keyframes ledGlitch {
  0% { opacity: 0.2; }
  100% { opacity: 1; }
}

.system-title {
  font-weight: 700;
}

.entity-status {
  color: var(--color-phosphor-bright);
  font-size: 0.8rem;
  opacity: 0.9;
}

.term-btn {
  background: transparent;
  border: 1px solid var(--color-phosphor-dim);
  color: var(--color-phosphor);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.term-btn:hover {
  background: var(--color-phosphor-dim);
  color: #000;
  box-shadow: 0 0 8px var(--color-phosphor);
}

.term-btn.active {
  background: var(--color-phosphor);
  color: #000;
  font-weight: bold;
}

.clock {
  font-variant-numeric: tabular-nums;
  opacity: 0.8;
}

/* Terminal Body */
.terminal-body {
  flex: 1;
  padding: 18px 24px;
  overflow-y: auto;
  font-size: 1.05rem;
  line-height: 1.45;
  z-index: 10;
  scrollbar-width: thin;
  scrollbar-color: var(--color-phosphor-dim) transparent;
}

.terminal-body::-webkit-scrollbar {
  width: 6px;
}
.terminal-body::-webkit-scrollbar-thumb {
  background-color: var(--color-phosphor-dim);
  border-radius: 3px;
}

/* Output Typography */
#output {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.line {
  word-break: break-word;
  white-space: pre-wrap;
}

.line.banner {
  color: var(--color-phosphor-bright);
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.1;
  margin-bottom: 8px;
}

.line.system {
  color: var(--color-phosphor-dim);
  font-size: 0.95rem;
}

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

.line.warning {
  color: var(--color-warn);
  text-shadow: 0 0 6px rgba(255, 176, 0, 0.5);
}

.line.error {
  color: var(--color-alert);
  text-shadow: 0 0 8px var(--color-alert-glow);
  font-weight: bold;
}

.line.ghost {
  color: var(--color-phosphor-bright);
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--color-phosphor);
  padding: 4px 10px;
  margin: 4px 0;
  font-style: italic;
  letter-spacing: 0.5px;
  animation: ghostWhisper 0.1s infinite alternate;
}

@keyframes ghostWhisper {
  0% { transform: translate(0, 0); }
  100% { transform: translate(0.4px, -0.2px); }
}

.line.ghost.agitated {
  color: #ff5566;
  border-left-color: #ff3344;
  text-shadow: 0 0 8px rgba(255, 51, 68, 0.7);
  animation: ghostFurious 0.08s infinite alternate;
}

@keyframes ghostFurious {
  0% { transform: translate(-1px, 0.5px) skew(0.5deg); }
  100% { transform: translate(1px, -0.5px) skew(-0.5deg); }
}

.line.user-echo {
  color: var(--color-phosphor-bright);
  font-weight: 600;
  opacity: 0.85;
}

.line.divider {
  border-bottom: 1px dashed var(--color-phosphor-dim);
  margin: 8px 0;
  opacity: 0.5;
}

/* Command Table Formatting */
.cmd-table {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 4px 16px;
  margin: 6px 0 10px 10px;
}
.cmd-name {
  color: var(--color-phosphor-bright);
  font-weight: bold;
}
.cmd-desc {
  color: var(--color-phosphor);
  opacity: 0.9;
}

/* Interactive Input Line */
.input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding-bottom: 12px;
}

.prompt-label {
  color: var(--color-phosphor-bright);
  font-weight: bold;
  user-select: none;
}

.input-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.input-display {
  color: var(--color-phosphor-bright);
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 1.4rem;
}

.cursor {
  display: inline-block;
  color: var(--color-phosphor-bright);
  animation: blink 0.9s infinite step-start;
  margin-left: 1px;
}

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

.hidden-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  border: none;
  background: transparent;
  color: transparent;
  caret-color: transparent;
  outline: none;
  cursor: text;
}

/* Footer Diagnostic Bar */
.terminal-footer {
  height: 48px;
  background: rgba(0, 0, 0, 0.6);
  border-top: 1px solid var(--color-phosphor-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: 0.8rem;
  z-index: 10;
  flex-shrink: 0;
}

.footer-segment {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-segment .lbl {
  color: var(--color-phosphor-dim);
  font-weight: bold;
}

.footer-segment .val {
  color: var(--color-phosphor-bright);
}

.quick-actions {
  gap: 8px;
}

.quick-actions .hint {
  color: var(--color-phosphor-dim);
}

.quick-cmd-btn {
  background: rgba(51, 255, 102, 0.1);
  border: 1px solid var(--color-phosphor-dim);
  color: var(--color-phosphor);
  font-family: inherit;
  font-size: 0.72rem;
  padding: 3px 7px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.quick-cmd-btn:hover {
  background: var(--color-phosphor);
  color: #000;
  box-shadow: 0 0 6px var(--color-phosphor);
}

/* Responsive Handling */
@media (max-width: 800px) {
  .crt-bezel {
    padding: 0;
  }
  .crt-screen {
    height: 100vh;
    border-radius: 0;
    border-width: 4px;
  }
  .cmd-table {
    grid-template-columns: 120px 1fr;
  }
  .header-center, .footer-segment:nth-child(2) {
    display: none;
  }
  .terminal-body {
    font-size: 0.95rem;
    padding: 12px;
  }
}