/* ══════════════════════════════════════════════════════════
   UI COMPONENTS
══════════════════════════════════════════════════════════ */

/* ─── APP SHELL ─── */
.app { position: relative; z-index: 2; max-width: 980px; margin: 0 auto; padding: 0 24px 120px; }

/* ─── SCREEN SYSTEM ─── */
.screen { display: none; }
.screen.active { display: block; animation: screenIn 0.5s var(--transition) forwards; }

/* ─── FULLSCREEN SCREENS ─── */
#screen-alias, #screen-cutscene {
  position: fixed; inset: 0; z-index: 9999; background: #000;
  display: none; flex-direction: column; justify-content: center; align-items: center;
}
#screen-alias.active, #screen-cutscene.active { display: flex; }

/* ─── TITLE ─── */
#screen-title { padding: 14vh 0 0; text-align: center; }

.title-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 4px;
  color: var(--c); text-transform: uppercase;
  padding: 8px 20px;
  border: 1px solid var(--border-hi);
  background: var(--dim);
  border-radius: 2px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}
.title-eyebrow::before {
  content: '';
  position: absolute; left: -100%; top: 0; bottom: 0; width: 60%;
  background: linear-gradient(90deg, transparent, rgba(0,245,255,0.15), transparent);
  animation: shimmerSlide 3s infinite;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c); box-shadow: 0 0 10px var(--c);
  animation: pulse 1.5s ease-in-out infinite;
}

.title-hero {
  font-family: var(--font-display);
  font-size: clamp(48px, 10vw, 96px);
  font-weight: 900;
  color: var(--bright);
  line-height: 0.95;
  letter-spacing: -3px;
  text-transform: uppercase;
  text-shadow:
    0 0 60px rgba(0,245,255,0.2),
    0 0 120px rgba(0,245,255,0.08);
  margin-bottom: 24px;
  animation: titleFlicker 8s infinite;
}

.title-sub {
  font-family: var(--font-mono); font-size: 13px;
  color: var(--muted); letter-spacing: 2px;
  margin-bottom: 80px;
  max-width: 500px; margin-left: auto; margin-right: auto;
}

.menu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; max-width: 800px; margin: 0 auto; }

.menu-card {
  background: var(--surface);
  border: 1px solid rgba(0,245,255,0.06);
  padding: 48px 40px;
  cursor: pointer;
  transition: all 0.4s var(--transition);
  position: relative; overflow: hidden;
  text-align: left;
}
.menu-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(0,245,255,0.03) 100%);
  opacity: 0; transition: opacity 0.4s;
}
.menu-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--transition);
}
.mc-story::after { background: linear-gradient(90deg, var(--c), transparent); }
.mc-lab::after { background: linear-gradient(90deg, var(--c2), transparent); }
.menu-card:hover { background: var(--panel); border-color: var(--border); transform: translateY(-4px); }
.menu-card:hover::before { opacity: 1; }
.menu-card:hover::after { transform: scaleX(1); }

.mc-num {
  font-family: var(--font-display); font-size: 11px; letter-spacing: 4px;
  margin-bottom: 28px; display: block;
}
.mc-story .mc-num { color: var(--c); }
.mc-lab .mc-num { color: var(--c2); }
.mc-title {
  font-family: var(--font-display); font-size: 26px; font-weight: 700;
  color: var(--bright); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 2px;
}
.mc-desc { font-size: 14px; color: var(--muted); line-height: 1.7; font-weight: 500; opacity: 0.9; }
.mc-arrow {
  position: absolute; bottom: 24px; right: 24px;
  font-family: var(--font-mono); font-size: 12px; color: var(--muted);
  opacity: 0; transform: translateX(-8px);
  transition: all 0.3s;
}
.menu-card:hover .mc-arrow { opacity: 1; transform: translateX(0); }

/* ─── ALIAS SCREEN ─── */
.alias-box {
  width: 440px; padding: 48px;
  border: 1px solid var(--border-hi);
  background: rgba(8,8,16,0.95);
  position: relative;
  animation: boxIn 0.6s var(--transition) forwards;
}
.alias-box::before, .alias-box::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  border-color: var(--c);
}
.alias-box::before { top: -1px; left: -1px; border-top: 2px solid; border-left: 2px solid; }
.alias-box::after { bottom: -1px; right: -1px; border-bottom: 2px solid; border-right: 2px solid; }

.alias-label {
  font-family: var(--font-display); font-size: 10px; letter-spacing: 5px;
  color: var(--c); margin-bottom: 6px; display: block; text-transform: uppercase;
}
.alias-title {
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
  color: var(--bright); margin-bottom: 32px; text-transform: uppercase;
}
.alias-input {
  width: 100%; background: #000; border: 1px solid var(--border);
  color: var(--c); font-family: var(--font-mono); font-size: 18px;
  padding: 16px 20px; outline: none; border-radius: 0;
  transition: all 0.25s; margin-bottom: 20px;
  caret-color: var(--c);
}
.alias-input:focus { border-color: var(--c); box-shadow: 0 0 0 1px var(--c), 0 0 30px rgba(0,245,255,0.1); }

/* ─── CUTSCENE ─── */
#screen-cutscene { overflow: hidden; }
#matrix-rain { position: absolute; inset: 0; z-index: 0; }
.cutscene-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.9) 100%);
}
.cutscene-scanlines {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.15) 2px, rgba(0,0,0,0.15) 4px);
}
.cutscene-term {
  position: relative; z-index: 10;
  width: 100%; max-width: 820px;
  height: 100vh; padding: 64px 52px 80px;
  font-family: var(--font-mono); font-size: 14px; line-height: 2.4;
  overflow-y: auto; overflow-x: hidden; scrollbar-width: none;
}
.cutscene-term::-webkit-scrollbar { display: none; }

.ct-sys {
  font-size: 11px; letter-spacing: 3px; color: rgba(61,79,97,0.8);
  font-weight: normal;
}
.ct-nix-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,245,255,0.06); border: 1px solid rgba(0,245,255,0.2);
  padding: 3px 12px 3px 8px; font-size: 10px; letter-spacing: 3px;
  color: var(--c); font-weight: 700; white-space: nowrap;
}
.ct-nix-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c); box-shadow: 0 0 8px var(--c);
  animation: pulse 1.4s infinite;
}

.cta-wrap { margin-top: 40px; padding-bottom: 60px; }
.cta-hint {
  font-size: 10px; letter-spacing: 3px; color: rgba(61,79,97,0.7);
  margin-bottom: 20px; display: block;
}
.cta-btn {
  display: inline-flex; align-items: center; gap: 16px;
  background: transparent; border: 1px solid var(--c);
  color: var(--c); font-family: var(--font-mono); font-size: 13px;
  letter-spacing: 4px; padding: 18px 40px; cursor: pointer;
  transition: all 0.3s; position: relative; overflow: hidden;
  text-transform: uppercase;
}
.cta-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--c); transform: translateX(-101%);
  transition: transform 0.4s var(--transition);
}
.cta-btn:hover::before { transform: translateX(0); }
.cta-btn:hover { color: #000; }
.cta-btn span { position: relative; z-index: 1; }

/* ─── HUD ─── */
.hud {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 0 24px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px; flex-wrap: wrap; gap: 12px;
}
.hud-left { display: flex; flex-direction: column; gap: 4px; }
.hud-title {
  font-family: var(--font-display); font-size: 11px; letter-spacing: 5px;
  color: var(--c); text-transform: uppercase;
}
.hud-module {
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
  color: var(--bright); text-transform: uppercase; letter-spacing: 2px;
}
.hud-right { display: flex; align-items: center; gap: 20px; }
.hud-op {
  font-family: var(--font-mono); font-size: 12px; color: var(--muted);
}
.hud-op strong { color: var(--c); }

.back-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid rgba(255,0,60,0.2);
  color: rgba(255,0,60,0.5); font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 3px; padding: 7px 14px; cursor: pointer;
  transition: all 0.25s; text-transform: uppercase; margin-bottom: 32px; margin-top: 40px;
}
.back-btn:hover { border-color: var(--c2); color: var(--c2); background: rgba(255,0,60,0.05); }

/* ─── CHAPTER MAP ─── */
.chapter-map {
  display: flex; align-items: center; justify-content: center;
  gap: 0; padding: 28px 0; margin-bottom: 32px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  overflow-x: auto; overflow-y: hidden;
}
.cm-node { display: flex; flex-direction: column; align-items: center; gap: 10px; position: relative; z-index: 2; }
.cm-diamond {
  width: 18px; height: 18px; border: 2px solid var(--muted);
  transform: rotate(45deg); transition: all 0.4s; cursor: pointer;
  background: var(--void);
}
.cm-node.done .cm-diamond { border-color: var(--c3); background: rgba(0,255,136,0.08); box-shadow: 0 0 12px rgba(0,255,136,0.3); }
.cm-node.active .cm-diamond { border-color: var(--c); background: rgba(0,245,255,0.15); box-shadow: 0 0 20px rgba(0,245,255,0.5), inset 0 0 10px rgba(0,245,255,0.1); }
.cm-node.unlocked:hover .cm-diamond { border-color: var(--text); }
.cm-lbl { font-family: var(--font-mono); font-size: 9px; letter-spacing: 2px; color: var(--muted); text-align: center; white-space: nowrap; }
.cm-node.done .cm-lbl, .cm-node.active .cm-lbl { color: var(--text); }
.cm-line { width: 60px; height: 1px; background: var(--border); flex-shrink: 0; margin-top: -20px; z-index: 1; transition: all 0.4s; }
.cm-line.done { background: rgba(0,255,136,0.4); box-shadow: 0 0 6px rgba(0,255,136,0.3); }

/* ─── PANEL ─── */
.panel {
  background: var(--surface); border: 1px solid var(--border);
  padding: 32px; margin-bottom: 20px; position: relative; overflow: hidden;
}
.panel::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,245,255,0.2), transparent);
}
.panel-title {
  font-family: var(--font-display); font-size: 10px; letter-spacing: 4px;
  color: var(--muted); text-transform: uppercase; margin-bottom: 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.panel-title-accent { color: var(--c); }

/* ─── DIALOGUE ─── */
.dialogue { margin-bottom: 28px; border-bottom: 1px solid var(--border); padding-bottom: 28px; }
.dlg-badge {
  display: inline-block; font-family: var(--font-display); font-size: 9px;
  letter-spacing: 4px; text-transform: uppercase; padding: 4px 12px;
  margin-bottom: 14px; font-weight: 700;
}
.dlg-nix .dlg-badge { color: var(--c); border: 1px solid rgba(0,245,255,0.25); background: rgba(0,245,255,0.04); }
.dlg-srv .dlg-badge { color: var(--c5); border: 1px solid rgba(124,58,237,0.25); background: rgba(124,58,237,0.04); }
.dlg-hack .dlg-badge { color: var(--c2); border: 1px solid rgba(255,0,60,0.25); background: rgba(255,0,60,0.04); }
.dlg-text {
  font-size: 15px; color: var(--text); line-height: 1.9;
  font-weight: 400;
}
.dlg-text .hl { color: var(--c3); font-family: var(--font-mono); font-size: 13px; font-weight: 700; }
.dlg-text strong { color: var(--bright); }

/* ─── FORMS ─── */
.form-label {
  display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: 3px;
  color: var(--muted); text-transform: uppercase; margin: 20px 0 8px;
}
.form-label:first-child { margin-top: 0; }
.form-input {
  width: 100%; background: #000; border: 1px solid var(--border);
  color: var(--c); font-family: var(--font-mono); font-size: 14px;
  padding: 14px 16px; outline: none; border-radius: 0;
  transition: all 0.25s; caret-color: var(--c);
}
.form-input:focus { border-color: rgba(0,245,255,0.5); box-shadow: 0 0 0 1px rgba(0,245,255,0.15), 0 0 24px rgba(0,245,255,0.06); }
.form-input::placeholder { color: rgba(255,255,255,0.25); }
textarea.form-input { min-height: 90px; resize: vertical; line-height: 1.7; }

/* ─── ALGO CARDS ─── */
.algo-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 8px; margin: 8px 0 20px; }
.algo-card {
  background: #000; border: 1px solid var(--border);
  padding: 16px 18px; cursor: pointer; transition: all 0.2s;
  display: flex; align-items: center; gap: 14px;
  position: relative; overflow: hidden;
}
.algo-card::after { content: ''; position: absolute; inset: 0; background: var(--c); opacity: 0; transition: opacity 0.2s; }
.algo-card:hover { border-color: rgba(0,245,255,0.3); }
.algo-card.selected { border-color: var(--c); background: rgba(0,245,255,0.03); }
.algo-dot { width: 8px; height: 8px; border: 1px solid var(--muted); flex-shrink: 0; transform: rotate(45deg); transition: all 0.25s; }
.algo-card.selected .algo-dot { border-color: var(--c); background: var(--c); box-shadow: 0 0 12px var(--c); }
.algo-name { font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.algo-tag { font-family: var(--font-mono); font-size: 9px; color: var(--muted); letter-spacing: 1px; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-display); font-size: 13px;
  font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  padding: 14px 24px; cursor: pointer; transition: all 0.25s;
  position: relative; overflow: hidden;
}
.btn:hover { background: rgba(255,255,255,0.03); border-color: var(--text); color: var(--bright); }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.3; cursor: not-allowed; pointer-events: none; }
.btn-primary { border-color: var(--c); color: var(--c); }
.btn-primary:hover { background: var(--c); color: #000; box-shadow: 0 0 30px rgba(0,245,255,0.3), 0 0 60px rgba(0,245,255,0.1); }
.btn-danger { border-color: var(--c2); color: var(--c2); }
.btn-danger:hover { background: var(--c2); color: #fff; box-shadow: 0 0 30px rgba(255,0,60,0.3); }
.btn-success { border-color: var(--c3); color: var(--c3); }
.btn-success:hover { background: var(--c3); color: #000; box-shadow: 0 0 30px rgba(0,255,136,0.3); }
.btn-full { width: 100%; }
.btn-group { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* ─── COPY BUTTON ─── */
.copy-wrap { position: relative; }
.copy-btn {
  position: absolute; top: 12px; right: 12px;
  background: rgba(0,0,0,0.8); border: 1px solid var(--border);
  color: var(--muted); font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 2px; padding: 5px 10px; cursor: pointer;
  transition: all 0.2s; display: flex; align-items: center; gap: 6px; text-transform: uppercase;
}
.copy-btn:hover { border-color: var(--c); color: var(--c); background: rgba(0,245,255,0.05); }
.copy-btn.copied {
  border-color: var(--c3); color: var(--c3);
  background: rgba(0,255,136,0.08);
  animation: copyPop 0.4s var(--transition);
}
.copy-icon { font-size: 11px; transition: transform 0.2s; }
.copy-btn:hover .copy-icon { transform: translateY(-1px); }
.copy-btn.copied .copy-icon { animation: checkPop 0.3s ease forwards; }

/* ─── DATA READOUT ─── */
.readout {
  background: #000; border: 1px solid var(--border);
  padding: 20px 16px; font-family: var(--font-mono); font-size: 13px;
  line-height: 1.7; word-break: break-all; position: relative;
  border-left: 2px solid currentColor; margin-bottom: 12px;
}
.readout-cyan { color: var(--c); border-left-color: rgba(0,245,255,0.4); }
.readout-green { color: var(--c3); border-left-color: rgba(0,255,136,0.4); }
.readout-red { color: var(--c2); border-left-color: rgba(255,0,60,0.4); }
.readout-dim { color: var(--muted); opacity: 0.7; }

.dr-row { display: flex; margin-bottom: 8px; font-size: 12px; }
.dr-row:last-child { margin-bottom: 0; }
.dr-lbl { width: 150px; flex-shrink: 0; color: var(--muted); font-weight: 700; }

/* ─── TERMINAL ─── */
.term {
  background: #000; border: 1px solid var(--border); border-left: 2px solid var(--c2);
  padding: 20px 24px; font-family: var(--font-mono); font-size: 12px;
  line-height: 2.2; margin: 16px 0; max-height: 220px; overflow-y: auto;
}
.term::-webkit-scrollbar { width: 3px; }
.term::-webkit-scrollbar-thumb { background: rgba(0,245,255,0.2); }
.tl { display: block; margin: 2px 0; }
.tc { color: var(--bright); } .tp { color: var(--c2); }
.to { color: var(--muted); } .te { color: var(--c2); font-weight: 700; background: rgba(255,0,60,0.08); padding: 0 4px; }

/* ─── BIT GRID ─── */
.bit-grid {
  display: flex; flex-wrap: wrap; gap: 2px;
  padding: 14px; background: #000; border: 1px solid var(--border);
  max-height: 160px; overflow-y: auto; margin: 8px 0 12px;
}
.bit { width: 8px; height: 11px; background: rgba(255,255,255,0.02); flex-shrink: 0; transition: all 0.1s; }
.bit.on { background: var(--c3); box-shadow: 0 0 4px rgba(0,255,136,0.5); }
.bit.diff { background: var(--c2); box-shadow: 0 0 4px rgba(255,0,60,0.5); }

/* ─── HASH COMPARE ─── */
.hash-compare {
  font-family: var(--font-mono); font-size: 12px; word-break: break-all;
  letter-spacing: 1.5px; padding: 20px; background: #000;
  border: 1px solid var(--border); line-height: 2.5; margin-bottom: 8px;
}
.hc-match { color: var(--c3); }
.hc-miss { color: var(--bright); background: var(--c2); border-radius: 2px; padding: 0 2px; }

/* ─── QUIZ ─── */
.quiz-opt {
  width: 100%; text-align: left; background: #000; border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-ui); font-size: 14px; font-weight: 500;
  padding: 16px 20px; cursor: pointer; transition: all 0.2s; margin-bottom: 8px;
  display: block;
}
.quiz-opt:hover:not(:disabled) { border-color: rgba(0,245,255,0.3); padding-left: 28px; color: var(--bright); }
.quiz-opt.correct { border-color: var(--c3); background: rgba(0,255,136,0.06); color: var(--c3); font-weight: 600; }
.quiz-opt.wrong { border-color: var(--c2); background: rgba(255,0,60,0.06); color: var(--c2); }

/* ─── LAB TABS ─── */
.lab-tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 32px;
  position: sticky; top: 0; background: var(--void); z-index: 100;
  padding-top: 20px;
}
.lab-tab {
  font-family: var(--font-display); font-size: 12px; letter-spacing: 2px;
  color: var(--muted); text-transform: uppercase; padding: 14px 28px;
  cursor: pointer; transition: all 0.25s; border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.lab-tab:hover { color: var(--text); }
.lab-tab.active { color: var(--c); border-bottom-color: var(--c); }
.lab-panel { display: none; animation: screenIn 0.35s var(--transition); }
.lab-panel.active { display: block; }

/* ─── STATUS TAGS ─── */
.status-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 2px; padding: 3px 10px; text-transform: uppercase;
}
.st-ok { color: var(--c3); border: 1px solid rgba(0,255,136,0.25); background: rgba(0,255,136,0.04); }
.st-err { color: var(--c2); border: 1px solid rgba(255,0,60,0.25); background: rgba(255,0,60,0.04); }
.st-warn { color: var(--c4); border: 1px solid rgba(255,170,0,0.25); background: rgba(255,170,0,0.04); }
.st-info { color: var(--c); border: 1px solid rgba(0,245,255,0.4); background: rgba(0,245,255,0.02); }

.paste-btn {
  background: transparent; border: 1px solid var(--border);
  color: var(--muted); font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 2px; padding: 5px 12px; cursor: pointer;
  transition: all 0.2s; text-transform: uppercase;
}
.paste-btn:hover { border-color: var(--c); color: var(--c); }

/* ─── CINEMATIC PROGRESS BAR ─── */
.progress-bar-wrap { font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin: 4px 0 6px; }
.progress-bar-inner { color: var(--c); }

/* ─── SCORE CARD ─── */
.score-card {
  text-align: center; padding: 48px;
  border: 1px solid var(--border); background: var(--surface);
  margin-top: 20px; position: relative; overflow: hidden;
}
.score-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--c), transparent);
  animation: shimmerSlide 2s infinite;
}
.score-big { font-family: var(--font-display); font-size: 64px; font-weight: 900; color: var(--c); line-height: 1; }
.score-label { font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 3px; margin: 12px 0 24px; }

@media (max-width: 600px) {
  .menu-grid { grid-template-columns: 1fr; }
  .alias-box { width: 100%; margin: 20px; }
  .cutscene-term { padding: 40px 24px 60px; font-size: 13px; }
}

/* ─── DROP ZONE ─── */
.drop-zone {
  border: 2px dashed rgba(0, 245, 255, 0.2);
  border-radius: 8px;
  padding: 32px 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}
.drop-zone.hover {
  background: rgba(0, 245, 255, 0.05);
  border-color: var(--c);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 245, 255, 0.1);
}
.drop-icon {
  font-size: 24px;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 8px var(--c));
}
.drop-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}
.drop-filename {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c);
  font-weight: 600;
  letter-spacing: 1px;
}

/* ─── GLITCH FLASH (Bug #7 fix) ─── */
.glitch-flash {
  animation: glitchFlash 0.4s ease forwards;
}

/* ─── DIALOGUE HCK ALIAS (Bug #8 safety) ─── */
.dlg-hck .dlg-badge { color: var(--c2); border: 1px solid rgba(255,0,60,0.25); background: rgba(255,0,60,0.04); }

/* ─── ECDSA SIGNATURE CHAPTER ─── */
.sig-result {
  padding: 20px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.3);
  margin-top: 16px;
  transition: all 0.4s;
}
.sig-valid {
  border-color: rgba(0,255,136,0.4);
  background: rgba(0,255,136,0.04);
  animation: sigValid 0.8s ease forwards;
}
.sig-invalid {
  border-color: rgba(255,0,60,0.4);
  background: rgba(255,0,60,0.06);
  animation: sigInvalid 0.5s ease;
}
.sig-status {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.sig-status.valid { color: var(--c3); }
.sig-status.invalid { color: var(--c2); }
.sig-bytes {
  font-family: var(--font-mono);
  font-size: 11px;
  word-break: break-all;
  color: var(--c);
  line-height: 1.8;
  padding: 12px;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  margin-top: 8px;
}
.tamper-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(255,0,60,0.3);
  color: var(--c2);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 12px 20px;
  cursor: pointer;
  transition: all 0.25s;
}
.tamper-btn:hover {
  background: rgba(255,0,60,0.08);
  border-color: var(--c2);
  box-shadow: 0 0 20px rgba(255,0,60,0.15);
}

/* ─── PKI CERTIFICATE CHAPTER ─── */
.cert-panel {
  padding: 24px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.3);
  position: relative;
  overflow: hidden;
}
.cert-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,255,136,0.3), transparent);
}
.cert-valid {
  border-color: rgba(0,255,136,0.35);
  background: rgba(0,255,136,0.03);
}
.cert-invalid {
  border-color: rgba(255,0,60,0.35);
  background: rgba(255,0,60,0.03);
}
.cert-lock {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid;
  margin-bottom: 16px;
}
.cert-lock.secure {
  color: var(--c3);
  border-color: rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.04);
}
.cert-lock.broken {
  color: var(--c2);
  border-color: rgba(255,0,60,0.3);
  background: rgba(255,0,60,0.04);
}
.cert-chain {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 20px 0;
  overflow-x: auto;
}
.cert-chain-node {
  padding: 14px 18px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.4);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  min-width: 140px;
  flex-shrink: 0;
}
.cert-chain-node.root { border-color: rgba(124,58,237,0.4); color: var(--c5); }
.cert-chain-node.server { border-color: rgba(0,245,255,0.4); color: var(--c); }
.cert-chain-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--muted);
  padding: 0 6px;
  flex-shrink: 0;
}
.cert-field {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 4px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  margin-top: 12px;
}
.cert-field-label { color: var(--muted); letter-spacing: 1px; }
.cert-field-value { color: var(--c); word-break: break-all; }

/* ─── MD5 CRACKER ─── */
.crack-container {
  position: relative;
}
.crack-progress-wrap {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.3);
}
.crack-progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.05);
  position: relative;
  overflow: hidden;
  margin-bottom: 8px;
}
.crack-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c2), var(--c));
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(0,245,255,0.3);
}
.crack-progress-text {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 2px;
  display: flex;
  justify-content: space-between;
}
.crack-terminal {
  background: #000;
  border: 1px solid var(--border);
  border-left: 2px solid var(--c2);
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 2;
  max-height: 200px;
  overflow-y: auto;
  margin: 12px 0;
}
.crack-terminal::-webkit-scrollbar { width: 3px; }
.crack-terminal::-webkit-scrollbar-thumb { background: rgba(255,0,60,0.3); }
.crack-found {
  padding: 24px;
  border: 1px solid rgba(255,0,60,0.4);
  background: rgba(255,0,60,0.04);
  text-align: center;
  margin-top: 16px;
}
.crack-found .crack-password {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  color: var(--c2);
  margin: 12px 0;
  letter-spacing: 4px;
}
.crack-timer {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--c);
  letter-spacing: 2px;
}

/* --- STORY ENHANCEMENT v2 � EXPLANATION PANELS, COPY BTNS, FACT CARDS --- */

/* ------------------------------------------------------------------
   MOBILE RESPONSIVENESS OVERRIDES (v2)
------------------------------------------------------------------ */

/* -- TOUCH TARGETS -- */
.btn, .copy-btn, .lab-tab, .algo-card, .quiz-opt, .menu-card {
  min-height: 44px;
}
.form-input {
  min-height: 44px;
}

/* -- HOVER EQUIVALENTS FOR TOUCH (:focus, :active) -- */
.btn:focus, .btn:active { background: rgba(255,255,255,0.03); border-color: var(--text); color: var(--bright); }
.btn-primary:focus, .btn-primary:active { background: var(--c); color: #000; box-shadow: 0 0 30px rgba(0,245,255,0.3), 0 0 60px rgba(0,245,255,0.1); }
.btn-danger:focus, .btn-danger:active { background: var(--c2); color: #fff; box-shadow: 0 0 30px rgba(255,0,60,0.3); }
.btn-success:focus, .btn-success:active { background: var(--c3); color: #000; box-shadow: 0 0 30px rgba(0,255,136,0.3); }

.copy-btn:focus, .copy-btn:active { border-color: var(--c); color: var(--c); background: rgba(0,245,255,0.05); }
.copy-btn:focus .copy-icon, .copy-btn:active .copy-icon { transform: translateY(-1px); }

.algo-card:focus, .algo-card:active { border-color: rgba(0,245,255,0.3); }
.algo-card.algo-unsafe:focus, .algo-card.algo-unsafe:active { border-color: rgba(255, 40, 60, 0.6); background: rgba(255, 20, 40, 0.08); }
.algo-card.algo-warn:focus, .algo-card.algo-warn:active { border-color: rgba(255, 160, 0, 0.5); background: rgba(255, 140, 0, 0.07); }

.menu-card:focus, .menu-card:active { background: var(--panel); border-color: var(--border); transform: translateY(-4px); }
.menu-card:focus::before, .menu-card:active::before { opacity: 1; }
.menu-card:focus::after, .menu-card:active::after { transform: scaleX(1); }

/* -- RESPONSIVE GRIDS & LAYOUTS -- */
@media (max-width: 768px) {
  .menu-grid { grid-template-columns: 1fr; }
  .hud { flex-direction: column; align-items: flex-start; gap: 12px; }
  .algo-grid { grid-template-columns: 1fr !important; }
  
  /* Collapse explicit inline grid-template-columns to 1fr on mobile/tablet */
  div[style*="grid-template-columns: 1fr 1fr"], 
  div[style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 480px) {
  .app { padding: 0 12px 120px; }
  
  .title-hero {
    font-size: clamp(32px, 12vw, 48px);
    letter-spacing: -1px;
  }
  
  .lab-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    justify-content: flex-start;
    scrollbar-width: none; /* Firefox */
  }
  .lab-tabs::-webkit-scrollbar { display: none; } /* Chrome */
  
  .lab-tab { flex-shrink: 0; }
  
  /* Story mode text comfortable width is handled by .app padding, but we can ensure fonts scale down */
  .dialogue { padding: 20px 16px; }
  .dlg-text { font-size: 13px !important; line-height: 1.6 !important; }
}

.benchmark-bar { transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1); box-shadow: inset 0 0 10px rgba(0,0,0,0.5); }