:root {
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --text-color: #111;
    --panel-bg: #ffffff;
    --border-color: #e0e0e0;
    --primary-color: #000;
    --accent-color: #2e7d32;
}

body {
    font-family: var(--font-main);
    background-color: #f9f9f9;
    color: var(--text-color);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.manga-background {
    position: fixed; inset: -10%; width: 120%; height: 120%;
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 2vmin; transform: skewY(-12deg); z-index: -1;
}
.bg-panel {
    background-size: cover; background-position: center;
    filter: grayscale(1); opacity: 0.08;
}
.desktop-only { display: block; }

.container { width: 100%; max-width: 420px; padding: 20px; }

.panel {
    background: var(--panel-bg);
    border-radius: 0;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.5s ease-out forwards;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.title { font-size: 1.5rem; font-weight: 600; margin: 0 0 0.5rem 0; text-align: center; }
.description { font-size: 0.9rem; margin-bottom: 1.5rem; color: #666; text-align: center; }

.action-button {
    font-weight: 600; font-size: 1rem; background-color: var(--primary-color);
    color: white; border: none; width: 100%; padding: 12px; border-radius: 0;
    cursor: pointer; transition: background-color 0.2s ease; display: flex;
    justify-content: center; align-items: center; height: 48px;
}
.action-button:hover { background-color: #333; }
.action-button:disabled { background-color: #888; cursor: not-allowed; }

.loader {
    width: 22px; height: 22px; border: 3px solid rgba(255,255,255,0.3);
    border-top-color: #fff; border-radius: 50%; animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-message { color: #d32f2f; margin-top: 1rem; text-align: center; font-size: 0.9rem; height: 1.2rem; }

.result-container {
    opacity: 0; max-height: 0; overflow: hidden;
    transition: all 0.4s ease-out;
}
.result-container.visible { opacity: 1; max-height: 100px; margin-top: 1.5rem; }

.url-container { display: flex; border: 1px solid var(--border-color); }
#cdnUrl {
    flex-grow: 1; border: none; padding: 10px 12px; font-family: var(--font-mono);
    font-size: 0.85rem; background-color: #f9f9f9;
}
#cdnUrl:focus { outline: none; }

.copy-button {
    border: none; border-left: 1px solid var(--border-color); background-color: #f5f5f5;
    padding: 0 12px; cursor: pointer; transition: background-color 0.2s ease; display: flex; align-items: center;
}
.copy-button:hover { background-color: #e0e0e0; }
.copy-button.copied { background-color: var(--accent-color); }
.copy-button.copied .copy-icon, .copy-button.copied .copied-icon { color: white; }

.api-example { text-align: left; margin-top: 1.5rem; border-top: 1px solid #f0f0f0; padding-top: 1.5rem; }
.api-example h3 { font-size: 0.9rem; font-weight: 600; margin: 0 0 0.75rem 0; }

.code-block-wrapper { position: relative; }
pre[class*="language-"] {
    margin: 0 !important;
    border-radius: 0 !important;
    font-size: 0.8rem !important;
    border: 1px solid var(--border-color) !important;
}

.code-copy-button {
    position: absolute; top: 8px; right: 8px; background: #fdfdfd; border: 1px solid #ddd;
    border-radius: 0; padding: 5px; cursor: pointer; display: flex; align-items: center;
    opacity: 0.5; transition: all 0.2s ease;
}
.code-block-wrapper:hover .code-copy-button { opacity: 1; }
.code-copy-button:hover { background: #e0e0e0; }
.code-copy-button.copied { background-color: var(--accent-color); }
.code-copy-button.copied .copy-icon, .code-copy-button.copied .copied-icon { color: white; }

@media (max-width: 768px) {
    .manga-background { grid-template-columns: repeat(2, 1fr); }
    .desktop-only { display: none; }
    .panel { padding: 1.25rem; }
    .title { font-size: 1.4rem; }
}