/* ===== Base Styles - Reset and Global Styles ===== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
        "PingFang TC", "Microsoft JhengHei", sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--brown-dark);
    position: relative;
    background: var(--parchment);
    overflow-x: hidden;
}

.main-wrapper {
    display: flex;
    flex: 1;
    max-width: 100%;
    margin: 0 auto;
    width: 100%;
    gap: 0;
    position: relative;
    z-index: 10;
    background: var(--parchment);
    /* GPU acceleration for smooth sidebar transitions */
    transform: translateZ(0);
}

/* Wide screen layout optimization */
@media (min-width: 1280px) {
    .main-wrapper {
        max-width: 100%;
    }
}

/* Custom scrollbar - pixel style */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--parchment-dark);
    border: 2px solid var(--brown-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--brown-dark);
    border: 2px solid var(--parchment);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--brown-light);
}

/* Prevent tour background scroll */
body.tour-active {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes dropdownShow {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInStep {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes dots {
    0%,
    20% {
        content: "";
    }

    40% {
        content: ".";
    }

    60% {
        content: "..";
    }

    80%,
    100% {
        content: "...";
    }
}

@keyframes pixelBlink {
    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

@keyframes pixelTyping {
    0%,
    80%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    40% {
        transform: translateY(-4px);
        opacity: 1;
    }
}

@keyframes bookCoverFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Markdown content styles */
.markdown-content {
    line-height: 1.6;
    word-wrap: break-word;
}

.markdown-content a {
    color: #2563eb;
    text-decoration: underline;
    cursor: pointer;
    transition: color 0.2s ease;
}

.markdown-content a:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.markdown-content a:visited {
    color: #7c3aed;
}

.markdown-content p {
    margin: 0.75em 0;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin: 1em 0 0.5em 0;
    font-weight: 600;
}

.markdown-content ul,
.markdown-content ol {
    margin: 0.75em 0;
    padding-left: 1.5em;
}

.markdown-content li {
    margin: 0.25em 0;
}

.markdown-content pre {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 1rem;
    overflow-x: auto;
    margin: 1em 0;
}

.markdown-content code {
    background: #f1f5f9;
    padding: 0.2em 0.4em;
    border-radius: 0.25rem;
    font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
    font-size: 0.9em;
}

.markdown-content pre code {
    background: none;
    padding: 0;
}

.markdown-content blockquote {
    border-left: 4px solid #e2e8f0;
    padding-left: 1rem;
    margin: 1em 0;
    color: #64748b;
    font-style: italic;
}

/* Tool result content style */
.text-content {
    background: var(--parchment);
    border-left: 4px solid var(--brown-dark);
    padding: 12px;
    margin: 8px 0;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--brown-dark);
    white-space: pre-wrap;
}