/* ============================================
   0v3rlay.css — Full-Screen Overlays
   Screen lock, weather alerts, kernel panic,
   AI glitch effect, and nano editor simulation
   ============================================ */

/* ========================================
   Screen Lock Overlay
   Radial gradient lockscreen with centered box
   ======================================== */
.screen-lock-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0, 32, 0, 0.98), rgba(0, 0, 0, 0.98));
  color: #33ff33;
  z-index: 10002;
  display: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  text-shadow: 0 0 12px rgba(51, 255, 51, 0.7);
}

.screen-lock-overlay.active {
  display: flex;
}

.screen-lock-box {
  border: 1px solid #33ff33;
  background: rgba(0, 0, 0, 0.7);
  box-shadow: 0 0 30px rgba(51, 255, 51, 0.28);
  padding: 28px 34px;
  max-width: 520px;
}

.screen-lock-title {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.screen-lock-hint {
  color: #aaffaa;
  font-size: 0.9rem;
}

.screen-lock-form {
  display: grid;
  gap: 8px;
  min-width: min(360px, calc(100vw - 72px));
  text-align: left;
}

.screen-lock-label {
  color: #aaffaa;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.screen-lock-input {
  border: 1px solid rgba(51, 255, 51, 0.65);
  background: rgba(0, 0, 0, 0.74);
  color: #33ff33;
  font-family: 'Courier New', Courier, monospace;
  font-size: 1rem;
  padding: 10px 12px;
  outline: none;
  box-shadow: inset 0 0 10px rgba(51, 255, 51, 0.08);
}

.screen-lock-input:focus {
  border-color: #ffff00;
  box-shadow: 0 0 14px rgba(255, 255, 0, 0.2), inset 0 0 10px rgba(51, 255, 51, 0.1);
}

.screen-lock-input[readonly] {
  color: #aaffaa;
  opacity: 0.82;
}

.screen-lock-submit {
  margin-top: 8px;
  border: 1px solid #33ff33;
  background: rgba(51, 255, 51, 0.1);
  color: #33ff33;
  cursor: pointer;
  font-family: 'Courier New', Courier, monospace;
  padding: 10px 12px;
  text-transform: uppercase;
}

.screen-lock-submit:hover,
.screen-lock-submit:focus {
  background: rgba(51, 255, 51, 0.18);
  outline: none;
}

.screen-lock-message {
  color: #ffff00;
  font-size: 0.9rem;
  line-height: 1.45;
  margin-top: 14px;
  min-height: 2.7em;
  text-align: left;
  word-break: break-word;
}

/* ========================================
   Weather Alert Overlay
   Dropdown panel from top-right, yellow theme
   ======================================== */
.weather-alert-overlay {
  position: fixed;
  top: 32px;
  right: 8px;
  color: #33ff33;
  z-index: 10003;
  display: none;
  width: min(520px, calc(100vw - 16px));
  text-shadow: 0 0 10px rgba(51, 255, 51, 0.65);
}

.weather-alert-overlay.active {
  display: block;
}

.weather-alert-box {
  max-height: min(460px, calc(100vh - 48px));
  overflow-y: auto;
  border: 1px solid #ffff00;
  background: rgba(12, 12, 0, 0.96);
  box-shadow: 0 0 28px rgba(255, 255, 0, 0.35), inset 0 0 18px rgba(51, 255, 51, 0.08);
  padding: 16px 18px;
  animation: weather-dropdown-in 0.16s ease-out;
}

@keyframes weather-dropdown-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.weather-alert-title {
  color: #ffff00;
  font-size: 1rem;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.weather-alert-meta {
  color: #aaffaa;
  font-size: 0.82rem;
  margin-bottom: 14px;
  line-height: 1.45;
}

.weather-alert-body {
  white-space: pre-wrap;
  line-height: 1.5;
  font-size: 0.9rem;
}

.weather-alert-close {
  margin-top: 18px;
  border: 1px solid #33ff33;
  background: rgba(0, 0, 0, 0.45);
  color: #33ff33;
  font-family: 'Courier New', Courier, monospace;
  padding: 8px 12px;
  cursor: pointer;
}

.weather-alert-close:hover,
.weather-alert-close:focus {
  outline: none;
  background: rgba(51, 255, 51, 0.14);
}

/* ========================================
   Nano Editor Overlay
   Simulated GNU nano text editor fullscreen
   ======================================== */
.nano-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  color: #d0d0d0;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  z-index: 20000;
  display: none;
  flex-direction: column;
  padding: 0;
  line-height: 1.35;
}

.nano-overlay.active {
  display: flex;
}

/* Title bar — inverted colors (white bg, black text) */
.nano-title-bar {
  background: #fff;
  color: #000;
  text-align: center;
  padding: 2px 0;
  font-weight: bold;
  flex-shrink: 0;
}

.nano-body {
  flex: 1;
  padding: 8px 12px;
  white-space: pre;
  overflow-y: auto;
  outline: none;
}

.nano-body .nano-line {
  min-height: 1.35em;
}

/* Cursor line highlight */
.nano-body .nano-cursor-line {
  background: rgba(51, 255, 51, 0.08);
}

.nano-status {
  color: #d0d0d0;
  padding: 2px 12px;
  font-size: 0.82rem;
  flex-shrink: 0;
}

.nano-help {
  background: #000;
  color: #d0d0d0;
  padding: 2px 12px;
  font-size: 0.78rem;
  flex-shrink: 0;
  border-top: 1px solid #444;
}

.nano-help kbd {
  color: #fff;
  font-weight: bold;
}

/* ========================================
   Kernel Panic Overlay
   Red text on black — the dreaded crash screen
   ======================================== */
.kernel-panic-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: #000;
  color: #ff3333;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  padding: 40px;
  z-index: 99999;
  overflow: hidden;
  display: none;
  white-space: pre-wrap;
  line-height: 1.4;
}

.kernel-panic-overlay.active {
  display: block;
  animation: flicker 0.15s ease-in-out 3;
}

/* ========================================
   AI Glitch Overlay
   Centered message box with screen flicker
   ======================================== */
.ai-glitch-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  color: #33ff33;
  font-family: 'Courier New', monospace;
  display: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 99998;
  padding: 24px;
  text-shadow: 0 0 12px rgba(51, 255, 51, 0.8);
}

.ai-glitch-overlay.active {
  display: flex;
  animation: flicker 0.12s ease-in-out 5;
}

.ai-glitch-box {
  max-width: 720px;
  border: 1px solid #33ff33;
  background: rgba(0, 20, 0, 0.9);
  box-shadow: 0 0 25px rgba(0, 255, 0, 0.35);
  padding: 28px;
}

.ai-glitch-title {
  font-size: 1.6rem;
  margin-bottom: 12px;
  letter-spacing: 0.08em;
}

.ai-glitch-subtitle {
  color: #99ff99;
  line-height: 1.6;
  font-size: 1rem;
  white-space: pre-line;
}

/* Shared flicker animation — used by kernel panic & AI glitch */
@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}