/* ============================================
   AI COMICS — DC/Marvel Inspired Theme
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Bangers&family=Comic+Neue:wght@400;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --comic-red: #e23636;
  --comic-blue: #2b4162;
  --comic-yellow: #f5c518;
  --comic-dark: #1a1a2e;
  --comic-darker: #0f0f1a;
  --comic-light: #f0e6d3;
  --comic-panel-border: #222;
  --comic-caption: #fffde7;
  --halftone-opacity: 0.04;
}

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

body {
  font-family: 'Comic Neue', 'Inter', sans-serif;
  background: var(--comic-darker);
  color: #e0e0e0;
  overflow-x: hidden;
}

/* Halftone dot overlay */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle, #fff var(--halftone-opacity), transparent var(--halftone-opacity));
  background-size: 4px 4px;
  pointer-events: none;
  z-index: 9999;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--comic-dark) 0%, #16213e 50%, var(--comic-darker) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 20px,
    rgba(255,255,255,0.01) 20px,
    rgba(255,255,255,0.01) 40px
  );
  animation: drift 20s linear infinite;
}

@keyframes drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(40px, 40px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 2rem;
}

.hero h1 {
  font-family: 'Bangers', cursive;
  font-size: clamp(3rem, 8vw, 7rem);
  color: var(--comic-yellow);
  text-shadow:
    3px 3px 0 var(--comic-red),
    6px 6px 0 rgba(0,0,0,0.3);
  letter-spacing: 4px;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero h1 span {
  display: block;
  font-size: 0.45em;
  color: #fff;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  letter-spacing: 6px;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: #aaa;
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-badge {
  display: inline-block;
  background: var(--comic-red);
  color: #fff;
  font-family: 'Bangers', cursive;
  font-size: 1.1rem;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  letter-spacing: 2px;
  transform: rotate(-2deg);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.4);
}

/* ---- NAV ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--comic-dark);
  border-bottom: 3px solid var(--comic-red);
  padding: 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-inner::-webkit-scrollbar { display: none; }

.nav a {
  display: block;
  padding: 1rem 1.5rem;
  color: #ccc;
  text-decoration: none;
  font-family: 'Bangers', cursive;
  font-size: 1.1rem;
  letter-spacing: 1px;
  white-space: nowrap;
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
}

.nav a:hover, .nav a.active {
  color: var(--comic-yellow);
  border-bottom-color: var(--comic-yellow);
  background: rgba(255,255,255,0.05);
}

/* ---- SECTIONS ---- */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.section-title {
  font-family: 'Bangers', cursive;
  font-size: 2.5rem;
  color: var(--comic-yellow);
  text-shadow: 2px 2px 0 var(--comic-red);
  margin-bottom: 0.5rem;
  letter-spacing: 2px;
}

.section-subtitle {
  font-size: 1rem;
  color: #888;
  margin-bottom: 2.5rem;
  border-bottom: 2px solid #333;
  padding-bottom: 1rem;
}

/* ---- ORIGINAL TEXT ---- */
.novel-text {
  background: var(--comic-dark);
  border: 3px solid #333;
  border-radius: 8px;
  padding: 2rem;
  font-size: 1.05rem;
  line-height: 2;
  color: var(--comic-light);
  position: relative;
  max-height: 600px;
  overflow-y: auto;
}

.novel-text::before {
  content: '原文';
  position: absolute;
  top: -14px;
  left: 20px;
  background: var(--comic-red);
  color: #fff;
  font-family: 'Bangers', cursive;
  padding: 2px 16px;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.novel-text .chapter {
  font-family: 'Bangers', cursive;
  font-size: 1.8rem;
  color: var(--comic-yellow);
  margin: 1.5rem 0 1rem;
}

.novel-text p {
  margin-bottom: 1rem;
  text-indent: 2em;
}

/* ---- STORYBOARD ---- */
.storyboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.storyboard-page {
  background: var(--comic-dark);
  border: 3px solid #444;
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.storyboard-page:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.storyboard-header {
  background: linear-gradient(135deg, var(--comic-blue), #1a1a3e);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 3px solid var(--comic-red);
}

.page-number {
  font-family: 'Bangers', cursive;
  font-size: 1.8rem;
  color: var(--comic-yellow);
  min-width: 60px;
}

.page-title {
  font-family: 'Bangers', cursive;
  font-size: 1.3rem;
  color: #fff;
  letter-spacing: 1px;
}

.storyboard-body {
  padding: 1.5rem;
}

.storyboard-body h4 {
  color: var(--comic-yellow);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.panel-desc {
  background: rgba(0,0,0,0.3);
  border-left: 3px solid var(--comic-red);
  padding: 0.8rem 1rem;
  margin-bottom: 0.8rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: #ccc;
}

.panel-desc strong {
  color: var(--comic-yellow);
}

/* ---- PROMPT + IMAGE COMPARISON ---- */
.prompt-comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .prompt-comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.prompt-card {
  background: var(--comic-dark);
  border: 3px solid #444;
  border-radius: 8px;
  overflow: hidden;
}

.prompt-card-header {
  background: var(--comic-blue);
  padding: 0.8rem 1.2rem;
  font-family: 'Bangers', cursive;
  font-size: 1.1rem;
  color: var(--comic-yellow);
  letter-spacing: 1px;
  border-bottom: 3px solid var(--comic-red);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prompt-text {
  padding: 1rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #aaa;
  max-height: 200px;
  overflow-y: auto;
  font-family: 'Inter', monospace;
}

.prompt-image {
  width: 100%;
  display: block;
  border-top: 2px solid #333;
}

.prompt-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- COMIC READER ---- */
.comic-reader {
  max-width: 800px;
  margin: 0 auto;
}

.comic-page {
  margin-bottom: 1.5rem;
  border: 4px solid var(--comic-panel-border);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.5);
  position: relative;
  background: #000;
}

.comic-page img {
  width: 100%;
  height: auto;
  display: block;
}

.comic-page-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--comic-red);
  color: #fff;
  font-family: 'Bangers', cursive;
  padding: 4px 12px;
  font-size: 0.9rem;
  letter-spacing: 1px;
  z-index: 2;
}

.comic-page-caption {
  background: var(--comic-caption);
  color: #222;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-top: 3px solid var(--comic-panel-border);
}

/* ---- CTA ---- */
.cta-bar {
  background: linear-gradient(135deg, var(--comic-red), #c0392b);
  padding: 2rem;
  text-align: center;
  margin-top: 3rem;
  border: 3px solid #222;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.cta-bar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(0,0,0,0.05) 10px,
    rgba(0,0,0,0.05) 20px
  );
}

.cta-bar * { position: relative; z-index: 1; }

.cta-bar h3 {
  font-family: 'Bangers', cursive;
  font-size: 1.8rem;
  color: var(--comic-yellow);
  margin-bottom: 0.5rem;
  letter-spacing: 2px;
}

.cta-bar p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.cta-button {
  display: inline-block;
  background: var(--comic-yellow);
  color: var(--comic-dark);
  font-family: 'Bangers', cursive;
  font-size: 1.3rem;
  padding: 0.8rem 2.5rem;
  text-decoration: none;
  border-radius: 4px;
  letter-spacing: 2px;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0,0,0,0.4);
}

/* ---- FIXED FOOTER BAR ---- */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--comic-dark);
  border-top: 3px solid var(--comic-red);
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

footer a { color: var(--comic-yellow); text-decoration: none; }

.footer-cta-text {
  font-family: 'Bangers', cursive;
  font-size: 1rem;
  color: #ccc;
  letter-spacing: 1px;
}

.footer-cta-btn {
  display: inline-block;
  background: var(--comic-red);
  color: #fff;
  font-family: 'Bangers', cursive;
  font-size: 0.9rem;
  padding: 0.4rem 1.2rem;
  border-radius: 4px;
  letter-spacing: 1px;
  text-decoration: none;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.3);
  transition: transform 0.2s;
}

.footer-cta-btn:hover {
  transform: translate(-1px, -1px);
  color: #fff;
}

body { padding-bottom: 50px; }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero h1 { font-size: 3rem; }
  .section { padding: 2rem 1rem; }
  .section-title { font-size: 2rem; }
  .novel-text { padding: 1rem; font-size: 0.95rem; }
}

/* ---- SCROLL ANIMATION ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}