@font-face {
  font-family: "Atkinson";
  src: url("/prin-tunel/assets/Atkinson.abde1ad5cf78.woff2") format("woff2");
  font-display: swap;
  font-weight: 400 700;
  font-style: normal;
}

@font-face {
  font-family: "PlexMono";
  src: url("/prin-tunel/assets/PlexMono.81fc864103e7.woff2") format("woff2");
  font-display: swap;
  font-weight: 400 600;
  font-style: normal;
}

:root {
  --bg-page: #f1f4f8;
  --bg-card: #ffffff;
  --bg-tunnel: #0f172a;
  --bg-tunnel-reveal: #1e293b;
  --bg-track: #e2e8f0;
  --text-primary: #090d16;
  --text-secondary: #1e293b;
  --text-muted: #475569;
  --border-subtle: #cbd5e1;
  --border-strong: #090d16;
  --gate-line: #0284c7;
  --gate-glow: rgba(2, 132, 199, 0.28);
  --mark-core: #f43f5e;
  --mark-glow: rgba(244, 63, 94, 0.4);
  --mark-frozen: #e11d48;
  --early-color: #d97706;
  --late-color: #4f46e5;
  --exact-color: #059669;
  --btn-bg: #090d16;
  --btn-text: #ffffff;
  --btn-hover: #1e293b;
  --btn-active: #0284c7;
  --focus-ring: #0284c7;
  --font-sans: "Atkinson", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "PlexMono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

html[data-theme="dark"] {
  --bg-page: #0a0f18;
  --bg-card: #111a28;
  --bg-tunnel: #030712;
  --bg-tunnel-reveal: #0f172a;
  --bg-track: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --border-subtle: #273549;
  --border-strong: #94a3b8;
  --gate-line: #38bdf8;
  --gate-glow: rgba(56, 189, 248, 0.35);
  --mark-core: #fb7185;
  --mark-glow: rgba(251, 113, 133, 0.5);
  --mark-frozen: #f43f5e;
  --early-color: #fbbf24;
  --late-color: #818cf8;
  --exact-color: #34d399;
  --btn-bg: #f8fafc;
  --btn-text: #090d16;
  --btn-hover: #e2e8f0;
  --btn-active: #38bdf8;
  --focus-ring: #38bdf8;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg-page: #0a0f18;
    --bg-card: #111a28;
    --bg-tunnel: #030712;
    --bg-tunnel-reveal: #0f172a;
    --bg-track: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --border-subtle: #273549;
    --border-strong: #94a3b8;
    --gate-line: #38bdf8;
    --gate-glow: rgba(56, 189, 248, 0.35);
    --mark-core: #fb7185;
    --mark-glow: rgba(251, 113, 133, 0.5);
    --mark-frozen: #f43f5e;
    --early-color: #fbbf24;
    --late-color: #818cf8;
    --exact-color: #34d399;
    --btn-bg: #f8fafc;
    --btn-text: #090d16;
    --btn-hover: #e2e8f0;
    --btn-active: #38bdf8;
    --focus-ring: #38bdf8;
  }
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border: 2px solid var(--border-strong);
  font-weight: 700;
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

/* Site Navigation */
.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.brand {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.theme-toggle, .lang-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4375rem 0.875rem;
  border-radius: 9999px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  min-height: 38px;
}

.theme-toggle:hover, .lang-toggle:hover {
  background-color: var(--bg-track);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* Main Layout */
main {
  flex: 1;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem 1.5rem 4rem;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gate-line);
  margin: 0 0 0.5rem;
}

.hero-copy h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.hero-copy .deck {
  font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
  line-height: 1.45;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 0 0.5rem;
}

.hero-copy .trust-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0 0 1.75rem;
}

/* Ballistic Instrument Stage */
.instrument-stage {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  margin-bottom: 2rem;
}

/* Instrument Header & Scale */
.instrument-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.round-indicator {
  font-weight: 600;
  color: var(--text-primary);
}

.velocity-indicator {
  font-weight: 600;
  color: var(--gate-line);
}

.track-scale {
  position: relative;
  height: 20px;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  user-select: none;
}

.scale-label {
  position: absolute;
  transform: translateX(-50%);
  top: 0;
}
.scale-label.launch { left: 14%; }
.scale-label.entrance { left: 28%; }
.scale-label.gate { left: 90%; color: var(--gate-line); font-weight: 600; }

/* The Ballistic Chamber Track */
.track-container {
  position: relative;
  height: 110px;
  background: var(--bg-track);
  border: 2px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 1.25rem;
  touch-action: manipulation;
  cursor: pointer;
}

.track-rail {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border-subtle);
  transform: translateY(-50%);
}

.chamber-launch {
  position: absolute;
  top: 0;
  left: 0;
  width: 28%;
  bottom: 0;
  background: transparent;
  border-right: 2px dashed var(--border-strong);
  display: flex;
  align-items: flex-start;
  padding: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  user-select: none;
}

.chamber-tunnel {
  position: absolute;
  top: 0;
  left: 28%;
  right: 0;
  bottom: 0;
  background: var(--bg-tunnel);
  transition: background-color 0.2s ease;
  overflow: hidden;
}

.chamber-tunnel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 39px,
    rgba(255, 255, 255, 0.03) 40px
  );
}

.tunnel-label {
  position: absolute;
  top: 0.5rem;
  left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  user-select: none;
  z-index: 2;
}

/* Laser Exit Gate */
.exit-gate {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 90%;
  width: 3px;
  background: var(--gate-line);
  box-shadow: 0 0 12px var(--gate-glow);
  z-index: 5;
}

.exit-gate::after {
  content: "IEȘIRE";
  position: absolute;
  bottom: 0.375rem;
  left: -20px;
  width: 44px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--gate-line);
  background: rgba(0, 0, 0, 0.6);
  padding: 1px 2px;
  border-radius: 2px;
  user-select: none;
}
html[lang="en"] .exit-gate::after {
  content: "EXIT";
}

/* The Moving Mark */
.mark-pulse {
  position: absolute;
  top: 50%;
  left: 0;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  margin-left: -11px;
  background: var(--mark-core);
  border: 2px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 14px var(--mark-glow);
  z-index: 4;
  transform: translateX(0);
  pointer-events: none;
  display: block;
}

/* Reveal Shutter State */
.track-container.revealed .chamber-tunnel {
  background: var(--bg-tunnel-reveal);
}

.track-container.revealed .chamber-tunnel::before {
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 19px,
    rgba(255, 255, 255, 0.07) 20px
  );
}

.target-ghost {
  position: absolute;
  top: 50%;
  left: 90%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  margin-left: -11px;
  border: 2px dashed var(--gate-line);
  border-radius: 50%;
  background: transparent;
  z-index: 3;
  display: none;
}
.track-container.revealed .target-ghost {
  display: block;
}

.delta-connector {
  position: absolute;
  top: 50%;
  height: 2px;
  background: var(--early-color);
  transform: translateY(-50%);
  z-index: 3;
  display: none;
}
.track-container.revealed .delta-connector {
  display: block;
}
.delta-connector.late {
  background: var(--late-color);
}
.delta-connector.exact {
  background: var(--exact-color);
}

/* Action Controls */
.controls-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.primary-btn {
  width: 100%;
  max-width: 440px;
  min-height: 58px;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 2px solid var(--border-strong);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.08s ease, background-color 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.primary-btn:hover {
  background: var(--btn-hover);
}

.primary-btn:active {
  transform: scale(0.985);
}

.primary-btn.action-trigger {
  background: var(--mark-core);
  border-color: var(--mark-core);
  color: #ffffff;
}

.keyboard-hint {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
  text-align: center;
}

/* Live Round Feedback Banner */
.round-feedback {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--bg-track);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.round-feedback[hidden] {
  display: none;
}

.feedback-delta {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 700;
}
.feedback-delta.early { color: var(--early-color); }
.feedback-delta.late { color: var(--late-color); }
.feedback-delta.exact { color: var(--exact-color); }

.feedback-interpretation {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Attempts Trace Section */
.attempts-section {
  margin-bottom: 2.5rem;
}

.section-heading {
  margin-bottom: 1.25rem;
}
.section-heading h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.25rem;
}
.section-heading p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9375rem;
}

.attempts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.attempt-row {
  display: grid;
  grid-template-columns: 28px 1fr 110px;
  align-items: center;
  gap: 1rem;
  padding: 0.625rem 0.875rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.attempt-num {
  font-weight: 600;
  color: var(--text-muted);
}

.mini-track {
  position: relative;
  height: 14px;
  background: var(--bg-track);
  border-radius: 3px;
  overflow: hidden;
}

.mini-tunnel {
  position: absolute;
  top: 0;
  left: 28%;
  right: 0;
  bottom: 0;
  background: var(--bg-tunnel);
}

.mini-gate {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 90%;
  width: 2px;
  background: var(--gate-line);
  z-index: 2;
}

.mini-marker {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--mark-core);
  z-index: 3;
  display: none;
}

.attempt-result {
  text-align: right;
  font-weight: 600;
  color: var(--text-muted);
}
.attempt-result.has-score {
  color: var(--text-primary);
}

/* Final Summary Card */
.summary-card {
  background: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: 12px;
  padding: 1.75rem;
  margin-bottom: 2.5rem;
}

.summary-card[hidden] {
  display: none;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.metric-box {
  padding: 1rem;
  background: var(--bg-track);
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.summary-explanation {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.summary-actions {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
}

.secondary-btn {
  padding: 0.6875rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease;
  min-height: 44px;
}

.secondary-btn:hover {
  background: var(--bg-track);
}

/* Method Section */
.method-section {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  margin-bottom: 3rem;
}

.method-section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.method-section p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 0 1rem;
}

.noscript-box {
  background: var(--bg-card);
  border: 2px solid var(--early-color);
  padding: 1.25rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  color: var(--text-primary);
}

/* Site Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.5rem;
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-content {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-content a {
  color: var(--text-primary);
  text-decoration: none;
}
.footer-content a:hover {
  text-decoration: underline;
}

/* Responsive Overrides */
@media (max-width: 640px) {
  .site-nav {
    padding: 1rem;
  }
  main {
    padding: 1rem 1rem 3rem;
  }
  .instrument-stage {
    padding: 1rem;
  }
  .track-container {
    height: 96px;
  }
  .attempt-row {
    grid-template-columns: 24px 1fr 90px;
    gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.75rem;
  }
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}