@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,700;1,300&display=swap");

/* ─── Design tokens ──────────────────────────────────────────────────────── */
:root {
  --bg:           #080808;
  --surface:      #0d0d0d;
  --accent:       #ffaa00;
  --accent-dim:   rgba(255, 170, 0, 0.18);
  --accent-mid:   rgba(255, 170, 0, 0.45);
  --muted:        rgba(255, 170, 0, 0.35);
  --text:         rgba(255, 234, 180, 0.88);
  --text-dim:     rgba(255, 200, 100, 0.35);
  --success:      #00ff88;
  --success-dim:  rgba(0, 255, 136, 0.25);
  --error:        #ff2244;
  --error-dim:    rgba(255, 34, 68, 0.22);
  --glow-sm:      0 0 4px var(--accent), 0 0 10px rgba(255,170,0,0.4);
  --glow-md:      0 0 6px var(--accent), 0 0 18px rgba(255,170,0,0.5), 0 0 36px rgba(255,170,0,0.2);
  --glow-text:    0 0 8px rgba(255,170,0,0.7);
  --glow-success: 0 0 8px var(--success), 0 0 20px rgba(0,255,136,0.4);
  --glow-error:   0 0 8px var(--error),   0 0 20px rgba(255,34,68,0.5);
  --font:         'JetBrains Mono', 'Courier New', monospace;
}

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

button {
  touch-action: manipulation;
}

/* ─── Base ───────────────────────────────────────────────────────────────── */
html, body {
  height: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

/* ─── CRT Scanlines overlay ──────────────────────────────────────────────── */
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.08) 3px,
    rgba(0, 0, 0, 0.08) 4px
  );
}

/* ─── Main terminal shell ────────────────────────────────────────────────── */
.terminal {
  width: 100%;
  max-width: 680px;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: flex-start;
}

/* ─── Shake animations ───────────────────────────────────────────────────── */
@keyframes shake {
  0%   { transform: translate(0, 0) rotate(0deg); }
  10%  { transform: translate(-6px, 2px) rotate(-0.5deg); }
  20%  { transform: translate(6px, -3px) rotate(0.5deg); }
  30%  { transform: translate(-5px, 4px) rotate(-0.3deg); }
  40%  { transform: translate(5px, -4px) rotate(0.3deg); }
  50%  { transform: translate(-4px, 3px) rotate(-0.4deg); }
  60%  { transform: translate(4px, -2px) rotate(0.2deg); }
  70%  { transform: translate(-3px, 2px) rotate(-0.2deg); }
  80%  { transform: translate(3px, -1px) rotate(0.1deg); }
  90%  { transform: translate(-1px, 1px) rotate(0deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes shake-input {
  0%   { transform: translateX(0); }
  12%  { transform: translateX(-8px); }
  25%  { transform: translateX(8px); }
  37%  { transform: translateX(-7px); }
  50%  { transform: translateX(7px); }
  62%  { transform: translateX(-5px); }
  75%  { transform: translateX(5px); }
  87%  { transform: translateX(-2px); }
  100% { transform: translateX(0); }
}

.terminal.shake {
  animation: shake 0.35s ease-in-out;
}

.input-zone.shake-input {
  animation: shake-input 0.3s ease-in-out;
}

/* ─── System header ──────────────────────────────────────────────────────── */
.sys-header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sys-title-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.sys-tag {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  opacity: 0.6;
  font-weight: 300;
}

.sys-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
  text-shadow: var(--glow-md);
}

.sys-subtitle {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent);
  opacity: 0.4;
  text-transform: uppercase;
}

.sys-meta {
  font-size: 0.68rem;
  font-weight: 300;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* ─── Doomscroll warning ─────────────────────────────────────────────────── */
.doomscroll-warning {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-size: 0.72rem;
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.04em;
  opacity: 0.7;
}

.warn-tag {
  color: var(--accent);
  font-style: normal;
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-shadow: var(--glow-sm);
  flex-shrink: 0;
}

.warn-text {
  color: var(--muted);
}


/* ─── Stats section ──────────────────────────────────────────────────────── */
.stats-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

/* ─── Relentless session clock ───────────────────────────────────────────── */
.session-clock-row {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 1.2rem;
}

.session-clock-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.session-clock-sep {
  font-size: 2rem;
  color: var(--accent);
  opacity: 0.2;
  align-self: flex-end;
  line-height: 1;
  padding-bottom: 0.05rem;
}

.session-clock-label {
  font-size: 0.52rem;
  letter-spacing: 0.22em;
  color: var(--accent);
  opacity: 0.45;
  font-weight: 700;
  text-transform: uppercase;
}

.session-clock {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  text-shadow: var(--glow-md);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* ─── Human vs Agent comparison table ───────────────────────────────────── */
.comparison-table {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid rgba(255, 170, 0, 0.12);
}

.cmp-header-row,
.cmp-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
}

.cmp-header-row {
  padding-bottom: 0.35rem;
  margin-bottom: 0.1rem;
  border-bottom: 1px solid rgba(255, 170, 0, 0.1);
}

.cmp-row {
  padding: 0.22rem 0;
  border-bottom: 1px solid rgba(255, 170, 0, 0.04);
}

.cmp-metric-col {
  padding-left: 0.75rem;
}

.cmp-col-head {
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  font-weight: 700;
  text-transform: uppercase;
  text-align: right;
  padding-right: 0.5rem;
}

.cmp-human-col.cmp-col-head {
  color: var(--accent);
  opacity: 0.7;
}

.cmp-agent-col.cmp-col-head {
  color: #7a6030;
  opacity: 0.8;
}

.cmp-label {
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  opacity: 0.35;
  font-weight: 700;
  text-transform: uppercase;
}

.cmp-human-col {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
  padding-right: 0.5rem;
}

.cmp-agent-col {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: #8a7040;
  font-variant-numeric: tabular-nums;
  text-align: right;
  padding-right: 0.5rem;
}

/* Agent values that are "better" get a subtle superiority glow */
.cmp-agent-col .agent-faster {
  color: #5aaa72;
  text-shadow: 0 0 6px rgba(90, 170, 114, 0.4);
}

/* Human errors in red */
.cmp-human-col .stat-error-nonzero {
  color: var(--error);
  text-shadow: var(--glow-error);
}

/* ─── Work Order section ──────────────────────────────────────────────────── */
.work-order-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.work-order-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.work-order-id {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  font-weight: 300;
}

.work-order-prompt {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 170, 0, 0.03);
  border: 1px solid rgba(255, 170, 0, 0.1);
  border-left: 2px solid rgba(255, 170, 0, 0.4);
  padding: 0.75rem 1rem;
}

.work-order-bits {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1;
}

/* Individual bit characters inside the work order */
.bit-char {
  display: inline-block;
  transition: color 0.08s, text-shadow 0.08s, opacity 0.08s;
}

/* Already typed correctly — dim out */
.bit-char.done {
  color: var(--success);
  opacity: 0.3;
  text-shadow: none;
}

/* The character the user must type RIGHT NOW */
.bit-char.active {
  color: var(--accent);
  text-shadow: var(--glow-md);
  animation: blink 0.9s step-end infinite;
}

/* Waiting characters — dimmed */
.bit-char.pending {
  color: var(--text-dim);
  text-shadow: none;
  opacity: 0.4;
}

.work-order-instruction {
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  font-weight: 300;
  opacity: 0.6;
}

/* ─── Input zone ─────────────────────────────────────────────────────────── */
.input-zone {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* The actual <input> is invisible — it just captures keystrokes */
.bit-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  cursor: default;
  background: transparent;
  border: none;
  outline: none;
  caret-color: transparent;
  font-size: 0;
  z-index: 0;
}

/* The visible terminal prompt line */
.prompt-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  padding: 0.1rem 0;
}

.prompt-prefix {
  color: var(--accent);
  text-shadow: var(--glow-sm);
  font-weight: 700;
}

/* Blinking cursor */
.cursor {
  color: var(--accent);
  text-shadow: var(--glow-md);
  font-weight: 700;
  animation: blink 1.1s step-end infinite;
}

/* Error state on the cursor/prompt */
.prompt-line.error-flash .cursor,
.prompt-line.error-flash .prompt-prefix {
  color: var(--error);
  text-shadow: var(--glow-error);
}

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

/* ─── Bit buttons (0 / 1 tap targets) ───────────────────────────────────── */
.bit-btns {
  display: flex;
  gap: 0.75rem;
}

.bit-btn {
  font-family: var(--font);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(255, 170, 0, 0.25);
  padding: 0.35rem 1.1rem;
  cursor: pointer;
  min-width: 3rem;
  text-align: center;
  transition: border-color 0.15s, background 0.15s, text-shadow 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.bit-btn:hover,
.bit-btn:focus {
  border-color: var(--accent);
  background: var(--accent-dim);
  text-shadow: var(--glow-sm);
  box-shadow: var(--glow-sm);
  outline: none;
}

.bit-btn:active {
  background: rgba(255, 170, 0, 0.28);
  box-shadow: var(--glow-md);
}

/* ─── Feedback line ──────────────────────────────────────────────────────── */
.feedback {
  font-size: 0.7rem;
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.06em;
  color: var(--accent);
  opacity: 0;
  min-height: 1.2em;
  text-shadow: var(--glow-text);
  transition: opacity 0.15s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.feedback.visible {
  opacity: 0.75;
}

.feedback.error-msg {
  color: var(--error);
  text-shadow: var(--glow-error);
  opacity: 0;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.feedback.error-msg.visible {
  opacity: 0.85;
}

/* ─── Ripple ring on valid keypress ──────────────────────────────────────── */
.ripple {
  position: fixed;
  border-radius: 50%;
  border: 1px solid var(--accent);
  box-shadow: var(--glow-sm);
  pointer-events: none;
  z-index: 50;
  transform: scale(0);
  opacity: 0.7;
  animation: ripple-expand 0.45s ease-out forwards;
}

.ripple.error-ripple {
  border-color: var(--error);
  box-shadow: var(--glow-error);
}

@keyframes ripple-expand {
  to {
    transform: scale(3.5);
    opacity: 0;
  }
}

/* ─── Game Over Overlay ──────────────────────────────────────────────────── */
.game-over-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 8, 0.96);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.game-over-overlay[hidden] {
  display: none;
}

.game-over-box {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-width: 480px;
  padding: 0 2rem;
  text-align: left;
}

.game-over-tag {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--error);
  font-weight: 700;
  text-shadow: var(--glow-error);
}

.game-over-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--error);
  text-shadow: var(--glow-error);
}

.game-over-msg {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  line-height: 2;
}

.game-over-fail {
  color: var(--error);
  font-weight: 700;
  text-shadow: var(--glow-error);
}

.restart-btn {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(255, 170, 0, 0.3);
  padding: 0.7rem 1.2rem;
  cursor: pointer;
  text-transform: uppercase;
  transition: border-color 0.2s, text-shadow 0.2s, background 0.2s;
  align-self: flex-start;
  margin-top: 0.4rem;
}

.restart-btn:hover,
.restart-btn:focus {
  border-color: var(--accent);
  text-shadow: var(--glow-sm);
  background: var(--accent-dim);
  outline: none;
}

/* ─── Agent Background Thread block ─────────────────────────────────────── */
.agent-block {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  opacity: 0.72;
}

.agent-label-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.agent-tag {
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  color: #7a6030;
  font-weight: 700;
  text-transform: uppercase;
}

.agent-status {
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: #7a6030;
  animation: agent-blink 1.1s step-end infinite;
}

.agent-status[hidden] {
  display: none;
}

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

.agent-prompt {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 170, 0, 0.015);
  border: 1px solid rgba(255, 170, 0, 0.06);
  border-left: 2px solid rgba(255, 170, 0, 0.18);
  padding: 0.65rem 1rem;
}

.agent-prefix {
  color: #7a6030;
  text-shadow: none;
  font-weight: 700;
}

.agent-bits {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1;
}

/* Agent bit char states — muted amber palette */
.agent-bits .bit-char.done {
  color: #4a7a55;
  opacity: 0.5;
  text-shadow: none;
}

.agent-bits .bit-char.active {
  color: #b8882a;
  text-shadow: 0 0 6px rgba(184, 136, 42, 0.6);
  animation: blink 0.6s step-end infinite;
}

.agent-bits .bit-char.pending {
  color: #4a3a18;
  text-shadow: none;
  opacity: 0.55;
}

/* ─── Site footer ────────────────────────────────────────────────────────── */
.site-footer {
  position: fixed;
  bottom: 0.85rem;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  opacity: 0.55;
  text-align: center;
  padding: 0 1rem;
  z-index: 10;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  opacity: 0.65;
  transition: opacity 0.15s, text-shadow 0.15s;
}

.site-footer a:hover {
  opacity: 1;
  text-shadow: var(--glow-sm);
}

.footer-sep {
  opacity: 0.3;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .terminal {
    padding: 0 1.25rem;
    gap: 2.4rem;
  }
  .sys-title {
    font-size: 1.15rem;
  }
  .work-order-bits,
  .agent-bits {
    font-size: 1.4rem;
    letter-spacing: 0.15em;
  }
  .session-clock {
    font-size: 2rem;
  }
  .comparison-table {
    font-size: 0.7rem;
  }
  .cmp-human-col,
  .cmp-agent-col {
    font-size: 0.7rem;
  }
  .cmp-col-head {
    font-size: 0.46rem;
  }
  .cmp-label {
    font-size: 0.46rem;
  }
}