@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Press+Start+2P&family=Space+Mono:wght@400;700&display=swap');

:root {
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body, 'Space Mono', monospace);
  color: var(--text-main, #f8fafc);
  background: var(--page-background, #04010f);
  transition: background 0.6s ease, color 0.6s ease;
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: -40vh -40vw;
  pointer-events: none;
  z-index: -2;
  opacity: var(--bg-overlay-opacity, 0.6);
  background: var(--bg-overlay, radial-gradient(circle at 20% 20%, rgba(255, 0, 149, 0.18), transparent 55%),
      radial-gradient(circle at 90% 15%, rgba(0, 255, 255, 0.18), transparent 65%));
  transform: rotate(2deg);
  mix-blend-mode: screen;
  transition: opacity 0.6s ease;
}

body::after {
  inset: -35vh -35vw;
  opacity: calc(var(--bg-overlay-opacity, 0.6) * 0.75);
  filter: blur(12px);
}

body.mode-retro {
  --font-body: 'Space Mono', 'Courier New', Courier, monospace;
  --font-heading: 'Press Start 2P', 'Space Mono', monospace;
  --text-main: #fff5f9;
  --text-soft: #ffbff2;
  --link: #fff5f9;
  --link-hover: #2affff;
  --accent: #ff71ff;
  --accent-strong: #06f5ff;
  --panel-bg: rgba(24, 0, 60, 0.88);
  --panel-border: #ffbdf2;
  --panel-border-secondary: #4700ff;
  --panel-shadow: 0 0 42px rgba(255, 0, 179, 0.45);
  --page-background: linear-gradient(130deg, #050014, #120052 45%, #1a0045 70%);
  --bg-overlay: repeating-conic-gradient(from 45deg, rgba(255, 0, 170, 0.08) 0deg 20deg, rgba(0, 0, 0, 0) 20deg 40deg),
      radial-gradient(circle at 80% 10%, rgba(0, 255, 230, 0.2), transparent 55%),
      radial-gradient(circle at 15% 85%, rgba(255, 115, 255, 0.15), transparent 60%);
  --bg-overlay-opacity: 0.75;
  --card-bg: rgba(18, 0, 48, 0.85);
  --card-border: #9d89ff;
  --card-shadow: 0 0 18px rgba(111, 0, 255, 0.45);
  --button-bg: linear-gradient(135deg, #ff71ff, #00fff6 60%, #ffed84 95%);
  --button-text: #1a0045;
  --button-border: #fff3fb;
  --button-shadow: 0 12px 32px rgba(255, 0, 179, 0.45);
  --ticker-bg: rgba(0, 0, 0, 0.6);
  --ticker-border: #ffbdf2;
  --nav-bg: linear-gradient(135deg, rgba(36, 0, 90, 0.92), rgba(10, 0, 40, 0.85));
  --nav-border: #ffbdf2;
  --nav-shadow: 0 0 20px rgba(255, 0, 170, 0.4);
  --retro-divider: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.45) 1px, rgba(0, 0, 0, 0) 1px, rgba(0, 0, 0, 0) 6px);
}

body.mode-modern {
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', system-ui, sans-serif;
  --text-main: #0c0c0c;
  --text-soft: #4a4a4a;
  --link: #0c0c0c;
  --link-hover: #000000;
  --accent: #0c0c0c;
  --accent-strong: #0c0c0c;
  --panel-bg: transparent;
  --panel-border: transparent;
  --panel-border-secondary: transparent;
  --panel-shadow: none;
  --page-background: #fdfdfc;
  --bg-overlay: none;
  --bg-overlay-opacity: 0;
  --card-bg: transparent;
  --card-border: transparent;
  --card-shadow: none;
  --button-bg: #0c0c0c;
  --button-text: #fdfdfc;
  --button-border: #0c0c0c;
  --button-shadow: none;
  --ticker-bg: transparent;
  --ticker-border: transparent;
  --nav-bg: transparent;
  --nav-border: transparent;
  --nav-shadow: none;
  --retro-divider: none;
}

body.mode-modern .ascii-banner {
  display: none;
}

body.mode-modern .ticker {
  border-radius: 0;
  overflow: visible;
}

body.mode-modern .page-shell {
  width: min(720px, 92vw);
  padding: 40px 0 80px;
}

body.mode-modern .site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: static;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  gap: 12px;
}

body.mode-modern .nav-links {
  gap: 12px;
}

body.mode-modern .nav-link {
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.95rem;
  padding: 0;
  border: none;
  border-radius: 0;
  text-decoration: underline;
  color: var(--text-main);
}

body.mode-modern .nav-link:hover,
body.mode-modern .nav-link:focus-visible {
  color: var(--text-main);
  border: none;
  background: none;
  text-decoration-thickness: 3px;
}

body.mode-modern .nav-link[aria-current='page'] {
  font-weight: 600;
  text-decoration-thickness: 3px;
}

body.mode-modern .mode-toggle {
  margin-left: auto;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.82rem;
  padding: 6px 14px;
  border-radius: 4px;
  background: transparent;
  color: var(--text-main);
  border: 1px solid currentColor;
  box-shadow: none;
  width: auto;
}

body.mode-modern .mode-toggle:hover,
body.mode-modern .mode-toggle:focus-visible {
  transform: none;
  filter: none;
}

body.mode-modern .hero {
  margin: 48px 0 36px;
}

body.mode-modern .crt-panel {
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}

body.mode-modern .crt-panel::after {
  display: none;
}

body.mode-modern .page-title {
  font-family: var(--font-body);
  letter-spacing: 0;
  text-transform: none;
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  margin-bottom: 16px;
}

body.mode-modern .deadpan {
  display: block;
  padding: 0;
  margin-bottom: 12px;
  border: none;
  border-radius: 0;
  background: none;
  box-shadow: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-soft);
}

body.mode-modern .tagline {
  font-family: var(--font-body);
  font-size: 0.95rem;
  letter-spacing: 0;
  line-height: 1.6;
  max-width: 520px;
}

body.mode-modern .section-note {
  font-family: var(--font-body);
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.85rem;
  color: var(--text-soft);
  max-width: 520px;
}

body.mode-modern .ticker {
  border-top: 1px solid #d9d9d9;
  border-bottom: 1px solid #d9d9d9;
  margin: 24px 0;
  padding: 12px 0;
}

body.mode-modern .ticker::before,
body.mode-modern .ticker::after {
  display: none;
}

body.mode-modern .ticker__inner {
  animation: none;
  padding-left: 0;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0;
  text-transform: none;
  white-space: normal;
}

body.mode-modern .cta-row {
  display: none;
}

body.mode-modern .section-title {
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 1.1rem;
  text-shadow: none;
  color: var(--text-main);
}

body.mode-modern .tool-grid {
  display: grid;
  gap: 14px;
}

body.mode-modern .tool-link {
  display: block;
  padding: 14px 18px;
  border: 1px solid #e2e2e2;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #f7f7f5);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease, border-color 0.2s ease;
}

body.mode-modern .tool-link:hover,
body.mode-modern .tool-link:focus-visible {
  background: #f0f0ee;
  border-color: #d0d0ce;
}

body.mode-modern .tool-card {
  display: block;
  padding: 0;
  min-height: auto;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: none;
}

body.mode-modern .tool-card::after {
  display: none;
}

body.mode-modern .tool-label {
  font-family: var(--font-body);
  letter-spacing: 0;
  text-transform: none;
  text-align: left;
  color: var(--text-main);
  font-size: 0.95rem;
}

body.mode-modern .tool-label .emoji {
  display: none;
}

body.mode-modern .back-link {
  margin-top: 48px;
}

body.mode-modern .back-link a {
  border: none;
  padding: 0;
  background: none;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-main);
  text-decoration: underline;
  gap: 4px;
}

body.mode-modern .back-link a:hover,
body.mode-modern .back-link a:focus-visible {
  transform: none;
  background: none;
}

body.mode-modern .listing {
  border: none;
  border-radius: 0;
  background: none;
  box-shadow: none;
  padding: 0;
  margin-top: 32px;
}

body.mode-modern .listing::after {
  display: none;
}

body.mode-modern .listing h3 {
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 1rem;
  color: var(--text-main);
}

body.mode-modern .listing ul {
  gap: 8px;
}

body.mode-modern .listing li {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-main);
}

body.mode-modern .listing li strong {
  font-family: var(--font-body);
  letter-spacing: 0;
}

body.mode-modern .listing a {
  color: inherit;
  text-decoration: underline;
}

body.mode-modern footer {
  color: var(--text-soft);
}

.page-shell {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 60px) 0 clamp(88px, 12vw, 140px);
  position: relative;
  z-index: 2;
}

.site-nav {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  justify-content: stretch;
  gap: 16px;
  background: var(--nav-bg);
  border: 3px double var(--nav-border);
  border-radius: clamp(12px, 2vw, 18px);
  padding: clamp(12px, 2vw, 18px) clamp(16px, 4vw, 24px);
  box-shadow: var(--nav-shadow);
  position: sticky;
  top: clamp(12px, 4vw, 40px);
  backdrop-filter: blur(8px);
  z-index: 5;
  width: 100%;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(10px, 2vw, 18px);
  align-items: center;
  justify-content: flex-start;
}

.nav-link {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(0.68rem, 1.6vw, 0.9rem);
  color: var(--link);
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 6px;
  border: 2px solid transparent;
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current='page'] {
  color: var(--link-hover);
  border-color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.08);
}

.mode-toggle {
  font-family: var(--font-heading);
  font-size: clamp(0.65rem, 1.5vw, 0.85rem);
  text-transform: uppercase;
  background: var(--button-bg);
  color: var(--button-text);
  border: 2px solid var(--button-border);
  border-radius: 999px;
  padding: 10px clamp(18px, 5vw, 28px);
  cursor: pointer;
  box-shadow: var(--button-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
  justify-self: end;
}

.mode-toggle:hover,
.mode-toggle:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

@media (max-width: 720px) {
  .site-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .nav-links {
    justify-content: center;
  }

  .mode-toggle {
    justify-self: stretch;
    width: 100%;
  }
}

.hero {
  margin: clamp(36px, 6vw, 70px) 0 clamp(32px, 6vw, 72px);
}

.crt-panel {
  background: var(--panel-bg);
  border: 4px double var(--panel-border);
  border-radius: clamp(18px, 3vw, 32px);
  padding: clamp(28px, 6vw, 48px);
  box-shadow: var(--panel-shadow);
  position: relative;
  overflow: hidden;
}

.crt-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--retro-divider);
  opacity: 0.22;
  pointer-events: none;
}

.crt-panel > * {
  position: relative;
  z-index: 1;
}

.ascii-banner {
  font-family: 'Space Mono', 'Courier New', monospace;
  font-size: clamp(0.52rem, 1.2vw, 0.68rem);
  color: var(--accent-strong);
  text-shadow: 0 0 10px rgba(0, 255, 247, 0.7), 0 0 18px rgba(255, 0, 200, 0.5);
  white-space: pre;
  margin: 0 auto clamp(18px, 3vw, 30px);
  line-height: 1.35;
  text-align: center;
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  letter-spacing: clamp(0.08em, 0.4vw, 0.24em);
  text-transform: uppercase;
  margin: 0 0 clamp(16px, 3vw, 28px);
  color: var(--text-main);
}

body.mode-retro .page-title {
  background: linear-gradient(120deg, #ff71ff, #06f5ff 55%, #fff5f9 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 24px rgba(6, 245, 255, 0.35);
}

body.mode-retro .section-note {
  background: rgba(0, 0, 0, 0.22);
  padding: 10px clamp(14px, 3vw, 20px);
  border-radius: 12px;
  border: 1px dashed var(--panel-border-secondary);
  box-shadow: 0 0 18px rgba(255, 0, 179, 0.28);
}

.tagline {
  margin: 0 0 clamp(20px, 4vw, 32px);
  font-size: clamp(0.9rem, 2.4vw, 1.1rem);
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 640px;
}

.deadpan {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 10px clamp(16px, 4vw, 26px);
  border: 2px solid var(--panel-border);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.32);
  color: var(--accent-strong);
  font-family: var(--font-heading);
  font-size: clamp(0.6rem, 1.5vw, 0.85rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  box-shadow: 0 0 18px rgba(0, 255, 255, 0.35);
}

.section-note {
  margin: 0 0 clamp(22px, 4vw, 30px);
  font-family: var(--font-heading);
  font-size: clamp(0.65rem, 1.8vw, 0.9rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
  max-width: 580px;
}

.ticker {
  position: relative;
  border: 2px dashed var(--ticker-border);
  background: var(--ticker-bg);
  margin: clamp(20px, 4vw, 36px) 0;
  padding: 10px 0;
  overflow: hidden;
}

.ticker::before,
.ticker::after {
  content: '';
  position: absolute;
  top: 0;
  width: 60px;
  height: 100%;
  pointer-events: none;
}

.ticker::before {
  left: 0;
  background: linear-gradient(90deg, var(--ticker-bg) 0%, rgba(0, 0, 0, 0) 90%);
}

.ticker::after {
  right: 0;
  background: linear-gradient(-90deg, var(--ticker-bg) 0%, rgba(0, 0, 0, 0) 90%);
}

.ticker__inner {
  display: inline-block;
  padding-left: 100%;
  animation: tickerMove 16s linear infinite;
  font-family: var(--font-heading);
  font-size: clamp(0.6rem, 1.6vw, 0.85rem);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

@keyframes tickerMove {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, 3vw, 18px);
}

.retro-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px clamp(18px, 4vw, 26px);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: clamp(0.7rem, 1.8vw, 0.95rem);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 2px solid var(--button-border);
  border-radius: 12px;
  background: var(--button-bg);
  color: var(--button-text);
  box-shadow: var(--button-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.retro-button:hover,
.retro-button:focus-visible {
  transform: translateY(-3px);
  filter: brightness(1.1);
}

.retro-button.alt {
  background: transparent;
  color: var(--link);
  border-style: dashed;
  box-shadow: none;
}

.tool-section {
  margin-top: clamp(48px, 8vw, 90px);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 3vw, 1.8rem);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 clamp(24px, 4vw, 32px);
  color: var(--accent);
  text-shadow: 0 0 12px rgba(255, 0, 170, 0.4);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(18px, 4vw, 28px);
}

.tool-link {
  text-decoration: none;
  color: inherit;
}

.tool-card {
  position: relative;
  background: var(--card-bg);
  border: 3px double var(--card-border);
  border-radius: clamp(16px, 3vw, 24px);
  padding: clamp(20px, 4vw, 32px);
  min-height: 140px;
  box-shadow: var(--card-shadow);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 12px;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, filter 0.35s ease;
}

.tool-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(0, 0, 0, 0));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tool-card:hover,
.tool-card:focus-within {
  transform: translateY(-6px) scale(1.01);
  filter: saturate(1.1);
}

.tool-card:hover::after,
.tool-card:focus-within::after {
  opacity: 1;
}

.tool-label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  text-align: center;
  color: var(--text-main);
}

.tool-label .emoji {
  display: inline-block;
  margin-right: 0.35em;
}

.back-link {
  margin-top: clamp(48px, 7vw, 80px);
}

.back-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--link);
  border: 2px dashed var(--button-border);
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.back-link a:hover,
.back-link a:focus-visible {
  transform: translateX(-6px);
  background: rgba(0, 0, 0, 0.35);
  color: var(--link-hover);
}

.listing {
  margin: clamp(36px, 6vw, 60px) 0 0;
  border: 3px double var(--panel-border);
  border-radius: clamp(16px, 3vw, 28px);
  background: var(--panel-bg);
  box-shadow: var(--panel-shadow);
  padding: clamp(24px, 5vw, 36px);
  position: relative;
  overflow: hidden;
}

.listing::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--retro-divider);
  opacity: 0.18;
}

.listing > * {
  position: relative;
  z-index: 1;
}

.listing h3 {
  margin: 0 0 18px;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: clamp(0.85rem, 2.2vw, 1.1rem);
  color: var(--accent);
}

.listing ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.listing li {
  background: rgba(0, 0, 0, 0.25);
  border: 2px dashed var(--card-border);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: clamp(0.82rem, 2.1vw, 1rem);
  color: var(--text-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.listing li strong {
  color: var(--text-main);
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
}

.listing a {
  color: var(--link-hover);
  text-decoration: none;
}

footer {
  margin-top: clamp(64px, 8vw, 120px);
  text-align: center;
  font-size: clamp(0.65rem, 1.6vw, 0.85rem);
  color: var(--text-soft);
}

@media (max-width: 640px) {
  .nav-links {
    width: 100%;
    justify-content: center;
  }

  .mode-toggle {
    width: 100%;
    justify-content: center;
  }

  .crt-panel {
    padding: clamp(20px, 8vw, 32px);
  }
}

@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;
  }

  .ticker__inner {
    padding-left: 0;
  }
}