@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;700&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --void: #0a0a0f;
  --surface: #12121a;
  --card: #1a1a25;
  --glow-1: #ff2d6a;
  --glow-2: #00f0ff;
  --glow-3: #b14eff;
  --text: #e8e8f0;
  --muted: #8888aa;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--void);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Animated background */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,45,106,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,45,106,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.aurora {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 20%, rgba(177,78,255,0.15) 0%, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(0,240,255,0.1) 0%, transparent 35%),
    radial-gradient(circle at 50% 80%, rgba(255,45,106,0.08) 0%, transparent 45%);
  animation: aurora-drift 20s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes aurora-drift {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-5%, 5%) rotate(3deg); }
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

/* Hero section */
header {
  text-align: center;
  padding: 4rem 0 5rem;
  position: relative;
}

.logo {
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0;
  background: linear-gradient(135deg, var(--glow-1) 0%, var(--glow-3) 50%, var(--glow-2) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  text-shadow: 0 0 80px rgba(255,45,106,0.5);
  position: relative;
}

.logo::before {
  content: 'byo·claw';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--glow-2) 0%, var(--glow-1) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  filter: blur(30px);
  opacity: 0.6;
  z-index: -1;
}

.title-row {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.title-plushie {
  height: clamp(160px, 22.5vw, 275px);
  width: auto;
  filter: drop-shadow(0 0 18px rgba(0, 240, 255, 0.2));
  transform: translateY(16%);
}

.tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--muted);
  max-width: 50ch;
  margin: 0 auto 2rem;
}

.tagline em {
  color: var(--glow-2);
  font-style: normal;
  font-weight: 700;
}

.subtitle {
  font-size: 1rem;
  color: var(--muted);
  opacity: 0.82;
  line-height: 1.75;
}

header .subtitle {
  max-width: 68ch;
  margin: 0 auto;
  padding: 0.95rem 1.2rem;
  border: 1px solid rgba(0,240,255,0.22);
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    rgba(0,240,255,0.07),
    rgba(255,45,106,0.06)
  );
  box-shadow:
    0 14px 28px rgba(0,0,0,0.25),
    inset 0 1px 0 rgba(255,255,255,0.06);
  color: #cfd6e9;
  font-size: clamp(0.98rem, 1.2vw, 1.08rem);
  letter-spacing: 0.01em;
  text-wrap: pretty;
}

/* ASCII decoration */
.ascii-claw {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  line-height: 1.2;
  color: var(--glow-1);
  opacity: 0.3;
  white-space: pre;
  position: absolute;
  right: -2rem;
  top: 2rem;
  transform: rotate(15deg);
  display: none;
}

@media (min-width: 900px) {
  .ascii-claw { display: block; }
}

/* Feature image */
.feature {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 4rem;
  transform: perspective(1000px) rotateX(2deg);
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.feature::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 2px;
  background: linear-gradient(135deg, var(--glow-1), var(--glow-3), var(--glow-2));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

.feature:hover {
  transform: perspective(1000px) rotateX(0deg) scale(1.01);
}

.feature img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(1.1);
}

.feature figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.5rem 1rem;
  background: linear-gradient(to top, rgba(10,10,15,0.95), transparent);
  font-size: 0.9rem;
  color: var(--muted);
}

/* Section cards */
section {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glow-2), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

section:hover {
  transform: translateY(-4px);
  border-color: rgba(0,240,255,0.2);
  box-shadow:
    0 20px 40px rgba(0,0,0,0.4),
    0 0 60px rgba(0,240,255,0.05);
}

section:hover::before {
  opacity: 1;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

h2::before {
  content: '//';
  color: var(--glow-1);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  opacity: 0.7;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--glow-2);
}

p {
  margin-bottom: 1rem;
  color: var(--muted);
}

p:last-child {
  margin-bottom: 0;
}

/* Spec grid */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.uses-heading {
  margin-top: 1.5rem;
}

.uses-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 760px) {
  .uses-grid {
    grid-template-columns: 1fr;
  }
}

.req-list {
  margin: 1rem 0 0 1.25rem;
  color: var(--muted);
}

.req-list li {
  margin-bottom: 0.6rem;
}

.placeholder {
  --placeholder-title-color: var(--text);
  --placeholder-body-color: var(--muted);
  background: rgba(255,255,255,0.02);
  border: 1px dashed rgba(255,45,106,0.3);
  border-radius: 12px;
  padding: 1.25rem;
  transition: all 0.3s;
  position: relative;
}

.placeholder::after {
  content: '◇';
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--glow-3);
  opacity: 0.4;
  font-size: 0.8rem;
}

.placeholder:hover {
  border-color: var(--glow-3);
  background: rgba(177,78,255,0.05);
}

.placeholder h3 {
  color: var(--placeholder-title-color);
  font-size: 1rem;
}

.placeholder p {
  color: var(--placeholder-body-color);
  font-size: 0.9rem;
  margin: 0;
}

.placeholder .req-list {
  color: var(--placeholder-body-color);
  margin: 0.8rem 0 0 1.25rem;
}

.placeholder .req-list li:last-child {
  margin-bottom: 0;
}

.placeholder blockquote {
  margin: 0.8rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid rgba(255,255,255,0.2);
  color: var(--muted);
  font-size: 0.9rem;
}

.placeholder-core {
  --placeholder-title-color: #d6f8ff;
  --placeholder-body-color: #8fb2b9;
  border-color: rgba(0,240,255,0.35);
  background: rgba(0,240,255,0.05);
}

.placeholder-core:hover {
  border-color: rgba(0,240,255,0.7);
  background: rgba(0,240,255,0.09);
}

.placeholder-feature {
  --placeholder-title-color: #ffe7bb;
  --placeholder-body-color: #c2ab82;
  border-color: rgba(255,179,71,0.45);
  background: rgba(255,179,71,0.07);
}

.placeholder-feature:hover {
  border-color: rgba(255,179,71,0.75);
  background: rgba(255,179,71,0.12);
}

/* Spec + assets layout */
.spec-assets-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.spec-assets-left {
  display: grid;
  gap: 1.5rem;
}

.spec-assets-layout section {
  margin-bottom: 0;
}

.spec-assets-right {
  height: 100%;
}

/* Asset cards */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.asset-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 1rem;
}

.asset-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 0.8rem;
}

.asset-card h3 {
  margin-bottom: 0.35rem;
}

.asset-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.asset-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.asset-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0,240,255,0.35);
  border-radius: 8px;
  padding: 0.45rem 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--glow-2);
  background: rgba(0,240,255,0.08);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.asset-action::after {
  display: none;
}

.asset-action:hover {
  color: var(--glow-1);
  border-color: rgba(255,45,106,0.6);
  background: rgba(255,45,106,0.12);
}

.github-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin: 1rem auto 0;
  padding: 0.9rem 1.5rem;
  border: 2px solid rgba(0,240,255,0.75);
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    rgba(255,45,106,0.28),
    rgba(0,240,255,0.22)
  );
  box-shadow: 0 0 28px rgba(0,240,255,0.18);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.github-cta::after {
  display: none;
}

.github-cta:hover {
  color: #fff;
  border-color: rgba(255,45,106,0.85);
  box-shadow: 0 0 34px rgba(255,45,106,0.35);
  transform: translateY(-1px) scale(1.02);
}

.footnote {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.8rem;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footnote::before {
  content: 'Note';
  color: var(--glow-2);
  font-weight: 700;
}

/* Prompt guidelines layout */
.prompt-guidelines-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.prompt-guidelines-main {
  max-width: 33em;
}

.prompt-guidelines-list {
  max-width: 33em;
}

.prompt-guidelines-example pre {
  margin-bottom: 0;
}

/* Code block */
code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(0,240,255,0.1);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--glow-2);
}

pre {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 1.5rem;
  overflow-x: auto;
  position: relative;
}

pre::before {
  content: '>';
  position: absolute;
  top: 0.5rem;
  right: 1rem;
  color: var(--glow-1);
  font-family: 'JetBrains Mono', monospace;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

pre code {
  background: none;
  padding: 0;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.8;
}

/* Links */
a {
  color: var(--glow-2);
  text-decoration: none;
  position: relative;
  transition: color 0.3s;
}

a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--glow-2);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}

a:hover {
  color: var(--glow-1);
}

a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
  background: var(--glow-1);
}

/* Footer */
footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

footer a::after {
  display: none;
}

/* Floating orbs */
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--glow-1);
  opacity: 0.04;
  top: 10%;
  left: -10%;
  animation: float-1 15s ease-in-out infinite;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--glow-2);
  opacity: 0.03;
  bottom: 20%;
  right: -5%;
  animation: float-2 18s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, 20px); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, -30px); }
}

/* Scanline effect */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 100;
}

@media (max-width: 640px) {
  .title-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .asset-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .spec-assets-layout {
    grid-template-columns: 1fr;
  }

  .prompt-guidelines-layout {
    grid-template-columns: 1fr;
  }

  .prompt-guidelines-main {
    max-width: none;
  }

  .prompt-guidelines-list {
    max-width: none;
  }
}