/* ============================================
   CORE COLOR TOKENS — UNIVERSAL BASE
============================================ */
:root {
  --c-white: #ffffff;
  --c-black: #000000;

  --c-blue: #4dabff;
  --c-red: #ff3b3b;
  --c-yellow: #ffe066;

  --c-panel-bg: var(--c-white);
  --c-panel-border: var(--c-black);
  --c-panel-shadow: 6px 6px 0 var(--c-black);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --font-comic: "Bangers", "Comic Sans MS", sans-serif;
}

/* ============================================
   THEMES — HERO / VILLAIN / NOIR / COSMIC
============================================ */
html[data-theme="hero"] {
  --c-blue: #4dabff;
  --c-red: #ff2e2e;
  --c-yellow: #ffe066;
  --c-panel-bg: #f7f7f7;
  background: #000;
  color: var(--c-white);
}

html[data-theme="villain"] {
  --c-blue: #1a3d7c;
  --c-red: #b30000;
  --c-yellow: #d4b200;
  --c-panel-bg: #e6e6e6;
  background: #000;
  color: var(--c-white);
}

html[data-theme="noir"] {
  --c-blue: #6aa0ff;
  --c-red: #ff4d4d;
  --c-yellow: #f5d76e;
  --c-panel-bg: #1a1a1a;
  background: #0d0d0d;
  color: #eaeaea;
}

html[data-theme="cosmic"] {
  --c-blue: #7acbff;
  --c-red: #ff5f8a;
  --c-yellow: #ffe98a;
  --c-panel-bg: #0f0f1a;
  background: radial-gradient(circle at center, #0f0f1a, #000);
  color: #e0e6ff;
}

/* ============================================
   GLOBAL RESET + TYPOGRAPHY
============================================ */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-comic);
  background: var(--c-yellow);
  color: var(--c-black);
}

h1, h2, h3, h4 {
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
}

/* ============================================
   COMIC PANEL SYSTEM
============================================ */
.panel {
  background: var(--c-panel-bg);
  border: 4px solid var(--c-panel-border);
  box-shadow: var(--c-panel-shadow);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.panel--tight { padding: 1rem; }
.panel--loose { padding: 2rem; }

/* ============================================
   TOP BAR
============================================ */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--c-blue);
  border-bottom: 4px solid var(--c-black);
  box-shadow: var(--c-panel-shadow);
}

.logo-small {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--c-black);
  text-decoration: none;
}

/* ============================================
   NAV LINKS
============================================ */
.nav-links a {
  margin-left: 1rem;
  font-weight: 900;
  color: var(--c-black);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 3px solid transparent;
  transition: 0.15s ease;
}

.nav-links a:hover {
  border-bottom: 3px solid var(--c-red);
}

/* ============================================
   BUTTONS — COMIC ACTION
============================================ */
.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  border-radius: 999px;
  border: 4px solid var(--c-black);
  cursor: pointer;
  box-shadow: var(--c-panel-shadow);
  transition: transform 0.12s ease;
}

.btn:hover { transform: scale(1.07); }

.btn--blue { background: var(--c-blue); color: var(--c-black); }
.btn--red { background: var(--c-red); color: var(--c-white); }
.btn--yellow { background: var(--c-yellow); color: var(--c-black); }
.btn--ghost {
  background: transparent;
  color: var(--c-black);
  border-color: var(--c-black);
}

/* ============================================
   COMIC GRID (Library)
============================================ */
.comic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}

.comic-card {
  background: var(--c-panel-bg);
  border: 4px solid var(--c-black);
  box-shadow: var(--c-panel-shadow);
  padding: 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.comic-card:hover { transform: scale(1.05); }

.comic-card-title {
  font-size: 1.2rem;
  font-weight: 900;
  margin-top: 0.5rem;
}

/* ============================================
   SPEECH BUBBLE
============================================ */
.speech-bubble {
  background: var(--c-panel-bg);
  border: 4px solid var(--c-black);
  box-shadow: var(--c-panel-shadow);
  padding: 1.5rem;
  border-radius: 12px;
  position: relative;
}

.speech-bubble::after {
  content: "";
  position: absolute;
  bottom: -22px;
  left: 40px;
  border-left: 22px solid var(--c-black);
  border-right: 22px solid transparent;
  border-top: 22px solid var(--c-black);
}

/* ============================================
   READER CANVAS + FLIP
============================================ */
.pageCanvas {
  width: 100%;
  max-width: 900px;
  background: var(--c-panel-bg);
  border: 4px solid var(--c-black);
  box-shadow: var(--c-panel-shadow);
  border-radius: var(--radius-md);
  transition: transform 1.4s ease, box-shadow 1.4s ease;
  transform-origin: left center;
  backface-visibility: hidden;
}

.flip {
  transform: rotateY(-180deg);
  box-shadow: -40px 0 80px rgba(0,0,0,0.8);
}

/* Lock fix */
#flipWrapper.locked {
  overflow: hidden !important;
  height: auto !important;
}