/* ==========================================================================
   DHANI.TECH — TERMINAL & CRT SHADER STYLESHEET
   Aesthetics: Retro-Futuristic Phosphor CRT, Cyber-Clean Monospace, 60fps
   ========================================================================== */

/* --- 1. THEME PALETTES & ROOT VARIABLES --- */
:root {
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;
  --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Green Phosphor (Default VT220 / Matrix) */
body.theme-green {
  --bg-desktop: #040805;
  --bg-window: #09120b;
  --bg-header: #0d1a0f;
  --border-glow: rgba(0, 255, 102, 0.35);
  --border-subtle: rgba(0, 255, 102, 0.15);
  --term-text: #00ff66;
  --term-glow: rgba(0, 255, 102, 0.45);
  --term-dim: #00a843;
  --term-prompt-user: #00ffcc;
  --term-prompt-host: #39ff14;
  --term-prompt-path: #58a6ff;
  --term-accent: #00ffaa;
  --term-highlight: #a6ff00;
  --term-error: #ff3366;
  --term-warning: #ffcc00;
  --theme-color-indicator: #00ff66;
}

/* Amber CRT (1980s DEC / IBM Monochrome) */
body.theme-amber {
  --bg-desktop: #0a0602;
  --bg-window: #140d04;
  --bg-header: #1f1406;
  --border-glow: rgba(255, 176, 0, 0.4);
  --border-subtle: rgba(255, 176, 0, 0.18);
  --term-text: #ffb000;
  --term-glow: rgba(255, 176, 0, 0.45);
  --term-dim: #aa7500;
  --term-prompt-user: #ffd27f;
  --term-prompt-host: #ffb000;
  --term-prompt-path: #ff9900;
  --term-accent: #ffe066;
  --term-highlight: #fff2a3;
  --term-error: #ff4d4d;
  --term-warning: #ffea00;
  --theme-color-indicator: #ffb000;
}

/* Cyberpunk Cyan & Magenta */
body.theme-cyber {
  --bg-desktop: #030810;
  --bg-window: #071220;
  --bg-header: #0c1b30;
  --border-glow: rgba(0, 240, 255, 0.4);
  --border-subtle: rgba(0, 240, 255, 0.18);
  --term-text: #00f0ff;
  --term-glow: rgba(0, 240, 255, 0.45);
  --term-dim: #008fa3;
  --term-prompt-user: #ff007f;
  --term-prompt-host: #00f0ff;
  --term-prompt-path: #a855f7;
  --term-accent: #00ffcc;
  --term-highlight: #ff007f;
  --term-error: #ff2a6d;
  --term-warning: #ffe600;
  --theme-color-indicator: #00f0ff;
}

/* Stealth / Obsidian Dark Modern */
body.theme-stealth {
  --bg-desktop: #080b10;
  --bg-window: #0d1117;
  --bg-header: #161b22;
  --border-glow: rgba(88, 166, 255, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.1);
  --term-text: #e6edf3;
  --term-glow: rgba(88, 166, 255, 0.2);
  --term-dim: #8b949e;
  --term-prompt-user: #58a6ff;
  --term-prompt-host: #7ee787;
  --term-prompt-path: #d2a8ff;
  --term-accent: #58a6ff;
  --term-highlight: #f0883e;
  --term-error: #f85149;
  --term-warning: #d29922;
  --theme-color-indicator: #58a6ff;
}

/* --- 2. GLOBAL RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-desktop);
  color: var(--term-text);
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- 3. CRT SHADER & SCREEN CURVATURE EFFECTS --- */
/* Scanlines */
.crt-scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.18) 0px,
    rgba(0, 0, 0, 0.18) 1.5px,
    transparent 1.5px,
    transparent 3px
  );
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

.crt-scanlines.scanlines-off {
  opacity: 0;
}

/* CRT Vignette & Screen Bezel Shadows */
.crt-vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 101;
  pointer-events: none;
  background: radial-gradient(
    ellipse at center,
    transparent 65%,
    rgba(0, 0, 0, 0.45) 90%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

/* Phosphor Glow ambient bloom */
.crt-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 50%,
    var(--border-subtle) 0%,
    transparent 70%
  );
  opacity: 0.5;
}

/* Subtle Flicker animation */
@keyframes crt-flicker {
  0% { opacity: 0.98; }
  50% { opacity: 1; }
  52% { opacity: 0.95; }
  54% { opacity: 1; }
  80% { opacity: 0.98; }
  100% { opacity: 1; }
}

.terminal-window {
  animation: crt-flicker 0.15s infinite;
}

/* --- 4. TERMINAL WINDOW FRAME --- */
.terminal-window {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-window);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 30px var(--border-subtle);
  overflow: hidden;
  z-index: 10;
  transition: var(--transition-smooth);
}

@media (min-width: 768px) {
  body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
  }

  .terminal-window {
    width: 95vw;
    max-width: 1200px;
    height: 92vh;
    border-radius: 12px;
    border: 1px solid var(--border-glow);
    box-shadow: 
      0 10px 40px rgba(0, 0, 0, 0.8),
      0 0 25px var(--border-subtle),
      inset 0 0 1px var(--term-glow);
  }

  .terminal-window.fullscreen {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    border-radius: 0;
    margin: 0;
    border: none;
  }
}

/* --- 5. TITLE BAR CHROME --- */
.terminal-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 42px;
  min-height: 42px;
  padding: 0 16px;
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-subtle);
  user-select: none;
}

/* Mac-style action dots */
.window-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
  position: relative;
}

.dot:hover {
  transform: scale(1.15);
}

.dot-close {
  background-color: #ff5f56;
  box-shadow: 0 0 6px rgba(255, 95, 86, 0.6);
}

.dot-minimize {
  background-color: #ffbd2e;
  box-shadow: 0 0 6px rgba(255, 189, 46, 0.6);
}

.dot-maximize {
  background-color: #27c93f;
  box-shadow: 0 0 6px rgba(39, 201, 63, 0.6);
}

.window-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--term-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.window-title .host-icon {
  color: var(--term-accent);
}

.window-title .shell-tag {
  opacity: 0.6;
  font-size: 11px;
}

.window-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.action-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--term-text);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.action-btn:hover {
  background: var(--border-subtle);
  border-color: var(--border-glow);
  box-shadow: 0 0 10px var(--border-subtle);
}

.theme-btn .theme-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--theme-color-indicator);
  box-shadow: 0 0 6px var(--theme-color-indicator);
}

.gui-link {
  color: var(--term-accent);
}

/* --- 6. TERMINAL BODY & VIEWPORTS --- */
.terminal-body {
  flex: 1;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 20px;
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
.terminal-body::-webkit-scrollbar {
  width: 8px;
}

.terminal-body::-webkit-scrollbar-track {
  background: transparent;
}

.terminal-body::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 4px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
  background: var(--border-glow);
}

/* --- 7. BOOT SEQUENCE SCREEN --- */
.boot-screen {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.boot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-subtle);
}

.boot-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--term-accent);
  letter-spacing: 0.1em;
}

.boot-skip-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--term-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.boot-skip-btn:hover {
  color: var(--term-text);
  border-color: var(--term-text);
  box-shadow: 0 0 8px var(--border-subtle);
}

.boot-log {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 13px;
}

.boot-line {
  display: flex;
  align-items: baseline;
  gap: 12px;
  opacity: 0;
  animation: line-fade-in 0.1s forwards;
}

@keyframes line-fade-in {
  to { opacity: 1; }
}

.boot-time {
  color: var(--term-dim);
  font-size: 11.5px;
  min-width: 90px;
}

.boot-text {
  flex: 1;
  color: var(--term-text);
}

.boot-status-ok {
  color: var(--term-accent);
  font-weight: 700;
}

.boot-status-warn {
  color: var(--term-warning);
  font-weight: 700;
}

.boot-status-err {
  color: var(--term-error);
  font-weight: 700;
}

/* --- 8. INTERACTIVE SCREEN & PROMPT --- */
.interactive-screen {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 100%;
}

.interactive-screen.hidden {
  display: none;
}

.terminal-history {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Banner Box */
.term-banner-box {
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.25);
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 12px;
  box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.5);
}

.term-banner-title {
  color: var(--term-accent);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  text-shadow: 0 0 8px var(--term-glow);
}

.term-banner-subtitle {
  color: var(--term-dim);
  font-size: 12.5px;
  margin-bottom: 8px;
}

.term-banner-tips {
  font-size: 12.5px;
  color: var(--term-text);
}

.term-banner-tips code {
  color: var(--term-highlight);
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Command History Items */
.history-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.history-command-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.history-output {
  color: var(--term-text);
  word-break: break-word;
  white-space: pre-wrap;
  line-height: 1.55;
  text-shadow: 0 0 4px var(--term-glow);
}

/* Active Input Line */
.input-line-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  position: relative;
}

.prompt-label {
  display: flex;
  align-items: center;
  white-space: nowrap;
  font-weight: 700;
  user-select: none;
}

.prompt-user { color: var(--term-prompt-user); }
.prompt-at { color: var(--term-dim); }
.prompt-host { color: var(--term-prompt-host); }
.prompt-colon { color: var(--term-dim); }
.prompt-path { color: var(--term-prompt-path); }
.prompt-sign { color: var(--term-accent); margin-left: 2px; }

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

.cli-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--term-text);
  font-family: var(--font-mono);
  font-size: 14.5px;
  width: 100%;
  caret-color: transparent; /* custom block cursor used */
  text-shadow: 0 0 6px var(--term-glow);
}

/* Blinking Block Cursor */
.cursor-block {
  display: inline-block;
  color: var(--term-text);
  animation: cursor-blink 1s steps(2, start) infinite;
  margin-left: -2px;
  user-select: none;
}

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

/* --- 9. OUTPUT FORMATTING & HELPERS --- */
.c-green { color: #00ff66; }
.c-amber { color: #ffb000; }
.c-cyan { color: #00f0ff; }
.c-pink { color: #ff007f; }
.c-yellow { color: #ffe600; }
.c-red { color: #ff3366; }
.c-blue { color: #58a6ff; }
.c-dim { color: var(--term-dim); }
.c-bold { font-weight: 700; }
.c-accent { color: var(--term-accent); font-weight: 600; }

.ascii-art {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.25;
  white-space: pre;
  overflow-x: auto;
  color: var(--term-accent);
  text-shadow: 0 0 8px var(--term-glow);
  padding: 6px 0;
}

.neofetch-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 640px) {
  .neofetch-grid {
    flex-direction: row;
    align-items: center;
  }
}

.neofetch-specs {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 13px;
}

.spec-line {
  display: flex;
  gap: 8px;
}

.spec-key {
  color: var(--term-accent);
  font-weight: 700;
  min-width: 120px;
}

.spec-val {
  color: var(--term-text);
}

/* Table Output for Help & LS */
.term-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
  margin: 6px 0;
}

.term-cmd-card {
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
}

.term-cmd-name {
  color: var(--term-highlight);
  font-weight: 700;
  font-size: 13px;
}

.term-cmd-desc {
  color: var(--term-dim);
  font-size: 12px;
}

.ls-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 6px 0;
}

.ls-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ls-dir {
  color: var(--term-prompt-path);
  font-weight: 700;
}

.ls-file {
  color: var(--term-text);
}

.ls-secret {
  color: var(--term-error);
}

/* --- 10. MOBILE QUICK COMMAND BAR --- */
.mobile-action-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background-color: var(--bg-header);
  border-top: 1px solid var(--border-subtle);
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  user-select: none;
}

.mobile-action-bar::-webkit-scrollbar {
  display: none;
}

.mobile-bar-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--term-dim);
  letter-spacing: 0.1em;
}

.mobile-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--term-text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 14px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.mobile-chip:hover, .mobile-chip:active {
  background: var(--term-text);
  color: var(--bg-desktop);
  border-color: var(--term-text);
  box-shadow: 0 0 8px var(--term-glow);
}

/* --- 11. MATRIX DIGITAL RAIN CANVAS --- */
.matrix-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 150;
  display: none;
  background-color: rgba(0, 0, 0, 0.92);
  cursor: pointer;
}

.matrix-canvas.active {
  display: block;
}