/* 
 * Life of Brian Theme - Anachronistic Elegance
 * "What have the Romans ever done for us? Well... excellent web standards."
 */

/* Import Ancient Fonts - NO CLEAN MODERN FONTS ALLOWED */
@import url('https://fonts.googleapis.com/css2?family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=IM+Fell+DW+Pica:ital@0;1&family=Special+Elite&display=swap');

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

:root {
    /* Dusty Desert Tones - Color Palette */
    --primary-color: #8B4513;           /* Terracotta */
    --secondary-color: #D4A574;          /* Sand */
    --background-color: #F5E6D3;         /* Papyrus */
    --surface-color: #E8D5BE;            /* Weathered parchment */
    --border-color: #9B8B7E;             /* Dusty stone */
    --text-color: #3E2723;               /* Ancient ink */
    --text-secondary: #6D4C41;           /* Faded text */
    --error-color: #A0522D;              /* Tarnished copper */
    --warning-color: #DAA520;            /* Faded gold */
    --success-color: #556B2F;            /* Olive branch */
    --info-color: #6A5ACD;               /* Imperial purple */
    --accent-purple: #7851A9;            /* Faded imperial purple */
    --accent-gold: #B8860B;              /* Tarnished gold */
    
    /* Texture overlays */
    --texture-noise: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
}

body {
    font-family: 'IM Fell DW Pica', 'Georgia', serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--background-color);
    background-image: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(155, 139, 126, 0.03) 2px,
            rgba(155, 139, 126, 0.03) 4px
        ),
        var(--texture-noise);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header - Imperial Proclamation Style */
header {
    background-color: var(--surface-color);
    background-image: 
        linear-gradient(180deg, rgba(120, 81, 169, 0.1) 0%, transparent 100%),
        var(--texture-noise);
    border-bottom: 4px double var(--border-color);
    border-top: 3px solid var(--accent-purple);
    padding: 1.5rem 2rem;
    text-align: center;
    box-shadow: 
        inset 0 -1px 0 rgba(184, 134, 11, 0.3),
        0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
}

header::before {
    content: '✠';
    position: absolute;
    top: 0.5rem;
    left: 2rem;
    font-size: 1.5rem;
    color: var(--accent-purple);
    opacity: 0.4;
}

header::after {
    content: '✠';
    position: absolute;
    top: 0.5rem;
    right: 2rem;
    font-size: 1.5rem;
    color: var(--accent-purple);
    opacity: 0.4;
}

header h1 {
    font-family: 'Special Elite', 'Courier New', monospace;
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

header p {
    font-family: 'IM Fell DW Pica', serif;
    color: var(--text-secondary);
    font-size: 1rem;
    font-style: italic;
}

/* Main Content - Split Pane Layout */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1rem;
    flex: 1;
    overflow: hidden;
}

.editor-pane,
.preview-pane {
    display: flex;
    flex-direction: column;
    background-color: var(--surface-color);
    background-image: var(--texture-noise);
    border: 3px solid var(--border-color);
    border-radius: 0;
    overflow: hidden;
    box-shadow: 
        inset 0 0 0 1px rgba(184, 134, 11, 0.2),
        5px 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
}

.editor-pane::before,
.preview-pane::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-gold), var(--accent-purple));
    opacity: 0.6;
}

.pane-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background-color: var(--surface-color);
    background-image: 
        linear-gradient(180deg, rgba(120, 81, 169, 0.08) 0%, transparent 100%),
        var(--texture-noise);
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pane-header h2 {
    font-family: 'Special Elite', monospace;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-color);
}

.button-group {
    display: flex;
    gap: 0.5rem;
}

/* Markdown Input - Scribe's Workspace */
#markdownInput {
    flex: 1;
    padding: 1.5rem;
    border: none;
    font-family: 'Courier Prime', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    resize: none;
    outline: none;
    background-color: var(--background-color);
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 1.5rem,
            rgba(155, 139, 126, 0.15) 1.5rem,
            rgba(155, 139, 126, 0.15) calc(1.5rem + 1px)
        ),
        var(--texture-noise);
    color: var(--text-color);
    letter-spacing: 0.02em;
}

#markdownInput::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
    font-style: italic;
}

/* Preview Pane - Ancient Scroll Display */
.preview-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background-color: var(--background-color);
    background-image: var(--texture-noise);
    scroll-behavior: smooth;
}

/* Message Log - Town Crier's Announcements */
.message-log {
    margin: 0 1rem;
    background-color: var(--surface-color);
    background-image: var(--texture-noise);
    border: 3px solid var(--border-color);
    border-radius: 0;
    max-height: 150px;
    display: flex;
    flex-direction: column;
    box-shadow: 
        inset 0 0 0 1px rgba(120, 81, 169, 0.2),
        3px 3px 10px rgba(0, 0, 0, 0.15);
}

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--surface-color);
    background-image: linear-gradient(180deg, rgba(184, 134, 11, 0.1) 0%, transparent 100%);
    border-bottom: 2px solid var(--border-color);
}

.log-header h3 {
    font-family: 'Special Elite', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.btn-clear-log {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
    padding: 0.25rem 0.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Special Elite', monospace;
}

.btn-clear-log:hover {
    color: var(--error-color);
    transform: rotate(90deg) scale(1.2);
}

.log-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-family: 'Courier Prime', monospace;
}

.log-message {
    padding: 0.35rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px dashed rgba(155, 139, 126, 0.2);
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.log-message:last-child {
    border-bottom: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.log-message.error { color: var(--error-color); font-weight: 600; }
.log-message.warning { color: var(--warning-color); font-weight: 600; }
.log-message.success { color: var(--success-color); font-weight: 600; }
.log-message.info { color: var(--info-color); }

/* Export Controls - Administrative Bureau */
.export-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    padding: 1.5rem 2rem;
    background-color: var(--surface-color);
    background-image: 
        linear-gradient(180deg, transparent 0%, rgba(120, 81, 169, 0.05) 100%),
        var(--texture-noise);
    border-top: 4px double var(--border-color);
    border-bottom: 3px solid var(--accent-gold);
    align-items: center;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.control-group label {
    font-family: 'Special Elite', monospace;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-color);
}

.control-group input[type="text"],
.control-group select {
    padding: 0.65rem 0.85rem;
    border: 2px solid var(--border-color);
    border-radius: 0;
    font-size: 0.9rem;
    font-family: 'Courier Prime', monospace;
    outline: none;
    background-color: var(--background-color);
    background-image: var(--texture-noise);
    color: var(--text-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: inset 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.control-group input[type="text"]:focus,
.control-group select:focus {
    border-color: var(--accent-purple);
    box-shadow: 
        inset 2px 2px 4px rgba(0, 0, 0, 0.05),
        0 0 0 3px rgba(120, 81, 169, 0.15);
    transform: translateY(-1px);
}

.control-group select {
    cursor: pointer;
    appearance: none;
    background-image: 
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236D4C41' d='M6 9L1 4h10z'/%3E%3C/svg%3E"),
        var(--texture-noise);
    background-repeat: no-repeat, repeat;
    background-position: right 0.75rem center, 0 0;
    padding-right: 2.5rem;
}

#filenameInput {
    min-width: 220px;
}

.export-buttons {
    margin-left: auto;
}

/* Buttons - Carved Stone Style */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0;
    font-family: 'Special Elite', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 
        3px 3px 0 rgba(0, 0, 0, 0.2),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--primary-color) 100%);
    background-image: 
        linear-gradient(135deg, var(--accent-purple) 0%, var(--primary-color) 100%),
        var(--texture-noise);
    color: var(--background-color);
    border: 2px solid var(--accent-gold);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px) translateX(-1px);
    box-shadow: 
        5px 5px 0 rgba(0, 0, 0, 0.3),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.btn-primary:active {
    transform: translateY(0) translateX(0);
    box-shadow: 
        2px 2px 0 rgba(0, 0, 0, 0.3),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    background-color: var(--surface-color);
    background-image: var(--texture-noise);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    text-shadow: 1px 1px 1px rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background-color: var(--background-color);
    border-color: var(--accent-purple);
    transform: translateY(-2px) translateX(-1px);
    box-shadow: 
        5px 5px 0 rgba(0, 0, 0, 0.2),
        inset 0 0 0 1px rgba(120, 81, 169, 0.2);
}

.btn-secondary:active {
    transform: translateY(0) translateX(0);
    box-shadow: 
        2px 2px 0 rgba(0, 0, 0, 0.2);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    filter: grayscale(100%);
}

/* Footer - Ancient Credits */
footer {
    padding: 1.25rem 2rem;
    text-align: center;
    background-color: var(--surface-color);
    background-image: 
        linear-gradient(180deg, transparent 0%, rgba(62, 39, 35, 0.05) 100%),
        var(--texture-noise);
    border-top: 3px double var(--border-color);
    font-family: 'IM Fell DW Pica', serif;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.05);
}

footer::before {
    content: '⸎ ';
    color: var(--accent-purple);
    opacity: 0.5;
}

footer::after {
    content: ' ⸎';
    color: var(--accent-purple);
    opacity: 0.5;
}

footer a {
    color: var(--accent-purple);
    text-decoration: underline wavy var(--accent-gold);
    text-underline-offset: 3px;
    transition: all 0.3s ease;
    font-weight: 600;
}

footer a:hover {
    color: var(--accent-gold);
    text-decoration-color: var(--accent-purple);
    transform: translateX(2px);
    display: inline-block;
}

/* Preview Content Markdown Styles */
.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.25;
}

.preview-content h1 { font-size: 2rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3rem; }
.preview-content h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3rem; }
.preview-content h3 { font-size: 1.25rem; }
.preview-content h4 { font-size: 1rem; }
.preview-content h5 { font-size: 0.875rem; }
.preview-content h6 { font-size: 0.85rem; color: var(--text-secondary); }

.preview-content p {
    margin-bottom: 1rem;
}

.preview-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.preview-content a:hover {
    text-decoration: underline;
}

.preview-content ul,
.preview-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.preview-content li {
    margin-bottom: 0.25rem;
}

.preview-content blockquote {
    padding: 0 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    border-left: 4px solid var(--border-color);
}

.preview-content code {
    padding: 0.2rem 0.4rem;
    background-color: rgba(27, 31, 35, 0.05);
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85em;
}

.preview-content pre {
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: var(--surface-color);
    border-radius: 6px;
    overflow-x: auto;
}

.preview-content pre code {
    padding: 0;
    background-color: transparent;
    border-radius: 0;
    font-size: 0.85rem;
    line-height: 1.45;
}

.preview-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.preview-content table th,
.preview-content table td {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.preview-content table th {
    background-color: var(--surface-color);
    font-weight: 600;
}

.preview-content table tr:nth-child(even) {
    background-color: var(--surface-color);
}

.preview-content img {
    max-width: 100%;
    height: auto;
}

.preview-content hr {
    height: 0.25rem;
    padding: 0;
    margin: 1.5rem 0;
    background-color: var(--border-color);
    border: 0;
}

/* Scrollbar Styles - Ancient Scroll Handle */
::-webkit-scrollbar {
    width: 14px;
    height: 14px;
}

::-webkit-scrollbar-track {
    background: var(--surface-color);
    background-image: var(--texture-noise);
    border-left: 2px solid var(--border-color);
    box-shadow: inset 2px 0 4px rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-gold));
    border: 2px solid var(--border-color);
    border-radius: 0;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-gold), var(--accent-purple));
    border-color: var(--accent-purple);
}

::-webkit-scrollbar-corner {
    background: var(--surface-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .export-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .export-buttons {
        margin-left: 0;
    }
}