@media (min-width: 900px) and (min-height: 700px) {
  #sector-g { border-top-width: 5px; }
  #sector-b { border-left-width: 5px; }
  #top-bar {
    padding: 6px 4px 10px;
  }
  #top-bar .title {
    font-size: 1.6rem;
    letter-spacing: 5px;
  }
  #connection-status {
    font-size: 0.75rem;
    padding: 4px 12px;
  }
  #status-bar {
    padding: 8px 14px;
    gap: 14px;
    border-radius: 6px;
    margin-bottom: 8px;
  }
  #integrity-wrap .label {
    font-size: 0.7rem;
  }
  #integrity-text {
    font-size: 1rem;
  }
  .integrity-track {
    height: 12px;
  }
  #stats-wrap {
    font-size: 0.9rem;
    gap: 12px;
  }
  #score-text {
    font-size: 1.1rem;
    min-width: 70px;
  }
  #level-text { font-size: 0.85rem; }
  #tier-text  { font-size: 0.75rem; }
  #combo-text { font-size: 0.9rem; }
  #multi-text { font-size: 0.85rem; }
  #timer-text { font-size: 0.8rem; }
  .score-popup { font-size: 1rem; }
  #standby-scores { font-size: 0.75rem; }
  #game-layout {
    gap: 12px;
  }
  .sector {
    border-radius: var(--radius-lg);
  }
  .sector-head {
    padding: 6px 14px;
    min-height: 36px;
  }
  .sector-dot {
    width: 12px;
    height: 12px;
  }
  .sector-name {
    font-size: 0.9rem;
    letter-spacing: 2.5px;
  }
  .sector-val {
    font-size: 1rem;
  }
  .sector-body {
    padding: 8px 14px 10px;
    gap: 6px;
  }
  .sector-status {
    font-size: 0.8rem;
    letter-spacing: 2px;
  }
  .reactor-track {
    width: clamp(36px, 4.5vw, 60px);
    border-radius: 8px;
  }
  .fw-track {
    height: clamp(22px, 3.5vh, 34px);
    border-radius: 6px;
  }
  .dq-bit {
    width: clamp(38px, 4.5vw, 56px);
    height: clamp(32px, 4vh, 48px);
    font-size: clamp(1.1rem, 2.2vw, 1.6rem);
    border-radius: 8px;
    border-width: 2px;
  }
  #decrypt-active {
    width: clamp(80px, 9vw, 120px);
    height: clamp(56px, 10vh, 100px);
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    border-radius: 12px;
    border-width: 3px;
  }
  .decrypt-timer-track {
    height: 10px;
    max-width: 80%;
  }
  #decrypt-arrow {
    font-size: 2rem;
  }
  .dq-label {
    font-size: 0.85rem;
  }
  #decrypt-queue {
    gap: 10px;
  }
  #terminal-log {
    margin-top: 0;
    padding: 8px 12px;
    font-size: 0.65rem;
    border-radius: var(--radius-md);
    line-height: 1.6;
  }
  #terminal-log::before {
    font-size: 0.55rem;
  }
  #level-progress-track { height: 6px; }
  #level-progress-label { font-size: 0.55rem; }
  #shield-indicator { font-size: 0.7rem; }
  .btn {
    width: clamp(56px, 7vh, 80px);
    height: clamp(56px, 7vh, 80px);
    border-width: 3px;
  }
  .btn .btn-icon {
    font-size: 1.5rem;
  }
  .btn .key-hint {
    font-size: 0.55rem;
    margin-top: 3px;
  }
  #buttons {
    gap: 12px;
    padding: 20px 24px 16px;
  }
  /* Overlays */
  #standby-logo {
    font-size: 1.1rem;
    margin-bottom: 14px;
  }
  #standby-sub {
    font-size: 0.85rem;
    margin-bottom: 24px;
  }
  #standby-desc {
    font-size: 0.85rem;
    line-height: 2.2;
    margin-bottom: 16px;
  }
  #standby-features {
    font-size: 0.7rem;
    margin-bottom: 16px;
  }
  #standby-hw {
    font-size: 0.7rem;
    margin-bottom: 30px;
  }
  #standby-prompt {
    font-size: 1.1rem;
    letter-spacing: 3px;
  }
  #diff-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }
  .diff-option {
    padding: 16px 20px;
    min-width: 120px;
    border-radius: 10px;
  }
  .diff-color {
    width: 50px;
    height: 50px;
    font-size: 1.1rem;
  }
  .diff-label {
    font-size: 1.1rem;
  }
  .diff-desc {
    font-size: 0.7rem;
  }
  #diff-hint {
    font-size: 0.95rem;
  }
  #diff-options {
    gap: 20px;
    margin-bottom: 25px;
  }
  #critical-icon {
    font-size: 3.5rem;
  }
  #critical-title {
    font-size: 1.5rem;
  }
  #critical-sector {
    font-size: 1.1rem;
  }
  #critical-instruction {
    font-size: 1.2rem;
  }
  .critical-track {
    height: 20px;
    border-radius: 8px;
  }
  #critical-counter {
    font-size: 1.3rem;
  }
  #critical-timer {
    font-size: 0.95rem;
  }
  #critical-box {
    padding: 28px 40px;
    max-width: 460px;
    border-radius: 14px;
  }
  #gameover-overlay {
    align-items: center;
    padding: 0;
  }
  #go-title {
    font-size: 2rem;
    margin-bottom: 16px;
  }
  #go-score {
    font-size: 1.4rem;
  }
  #go-grade {
    font-size: 2.4rem;
    margin: 4px 0;
  }
  #go-high, #go-time, #go-level, #go-tier, #go-diff, #go-combo {
    font-size: 0.95rem;
    margin: 5px 0;
  }
  #go-cause {
    font-size: 0.8rem;
    margin: 6px 0 8px;
    padding: 4px 10px;
  }
  #go-stats {
    font-size: 0.65rem;
    padding: 8px 12px;
    line-height: 1.7;
  }
  #go-prompt {
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-top: 10px;
  }
  .sector-damage-num { font-size: 1.4rem; }
  #diff-badge { font-size: 0.55rem; padding: 2px 8px; }
  #gameover-box {
    padding: 28px 36px;
    max-width: 460px;
  }
  /* Victory overlay — larger screens */
  #victory-overlay {
    align-items: center;
    padding: 0;
  }
  #victory-box {
    padding: 28px 36px;
    max-width: 460px;
  }
  #vic-title { font-size: 2rem; margin-bottom: 8px; }
  #vic-subtitle { font-size: 0.8rem; margin-bottom: 14px; }
  #vic-score { font-size: 1.4rem; }
  #vic-grade { font-size: 2.6rem; }
  #vic-high, #vic-time, #vic-level, #vic-diff, #vic-combo { font-size: 0.95rem; margin: 5px 0; }
  #vic-stats { font-size: 0.65rem; padding: 8px 12px; line-height: 1.7; }
  #vic-prompt { font-size: 0.9rem; margin-top: 10px; }
  #pause-icon {
    font-size: 4rem;
  }
  #pause-title {
    font-size: 1.8rem;
  }
  #pause-sub {
    font-size: 0.9rem;
  }
  #message-display {
    font-size: 3rem;
  }
  #overcharge-indicator {
    font-size: 0.75rem;
  }
  .reactor-status-row {
    gap: 14px;
  }
}

/* Extra large — 4K / big TV */
@media (min-width: 1400px) and (min-height: 900px) {
  #terminal {
    max-width: none;
    padding: 6px 20px 0;
  }
  #game-layout { gap: 14px; }
  #sector-r { border-left-width: 6px; }
  #sector-g { border-top-width: 6px; }
  #sector-b { border-left-width: 6px; }
  .btn {
    width: clamp(70px, 8vh, 100px);
    height: clamp(70px, 8vh, 100px);
    border-width: 4px;
  }
  .btn .btn-icon {
    font-size: 2rem;
  }
  #buttons {
    gap: 14px;
    padding: 24px 28px 18px;
  }
}

/* ── Sector metadata (hacker flavor) ─────────────────────── */
.sector-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 0.58rem;
  letter-spacing: 0.8px;
  color: rgba(255,255,255,0.22);
  padding: 2px 0;
  white-space: nowrap;
  overflow: hidden;
  flex-shrink: 0;
  min-width: 0;
}
.sector-meta span {
  transition: color 0.3s;
}
/* ── Reduced motion (accessibility) ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  /* Disable screen shake */
  .glitch-shake-sm,
  .glitch-shake-md,
  .glitch-shake-lg { transform: none; }
  /* Disable CRT scanline and flicker effects */
  #scanlines { display: none; }
  /* Disable confetti animations */
  .confetti-piece { display: none; }
  /* Disable sector pulsing glows */
  .sector-urgent-r, .sector-urgent-g, .sector-urgent-b { animation: none; }
  /* Disable critical border pulses */
  .crit-active, .crit-multi { animation: none; }
}