@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Extreme Claude Aesthetic Palette */
    --bg-color: #F3F1EC;       /* Distinct warm, muted paper beige */
    --surface-color: #FFFFFF;
    --text-primary: #2C2825;   /* Very dark espresso/charcoal */
    --text-secondary: #706B64; /* Muted taupe/grey */
    --border-color: #E2DFD8;   /* Warm sandy border */
    --border-hover: #C5C1B9;
    --accent-color: #D97757;   /* Claude signature rust/terracotta orange */
    --accent-hover: #C06447;
    --success-bg: #E8F5E9;
    --success-text: #2E7D32;
    --success-border: #C8E6C9;
    --danger-bg: #FFEBEE;
    --danger-text: #C62828;
    --danger-border: #FFCDD2;
    
    /* Typography */
    --font-header: 'Crimson Pro', serif; /* Extremely distinct, beautiful serif */
    --font-body: 'Inter', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.04);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-color);
}

/* -------------------------------------
   Navigation (Minimalist & Clean)
   ------------------------------------- */
.nav {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.nav-brand {
    font-family: var(--font-header);
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 0.3rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-links a svg {
    width: 16px;
    height: 16px;
}

.nav-links a:hover {
    background-color: rgba(226, 223, 216, 0.5); /* Subtle warm hover */
    color: var(--text-primary);
}

.nav-links a.active {
    background-color: var(--surface-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

@media (max-width: 900px) {
    .mobile-menu-btn { display: block; }
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
        margin-top: 1rem;
    }
    .nav-links.show {
        display: flex;
    }
    .nav-links a {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }
}

/* -------------------------------------
   Layout & Containers
   ------------------------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}
.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.page-header {
    margin-bottom: 4rem;
    text-align: center;
}
.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.page-header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 650px;
    margin: 0 auto;
    font-weight: 400;
}

/* -------------------------------------
   Workspaces & Panels
   ------------------------------------- */
.workspace {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 850px) {
    .workspace.dual-pane {
        grid-template-columns: 1fr 1fr;
    }
}

.panel {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    box-shadow: var(--shadow-subtle);
}

.panel-header {
    font-family: var(--font-header);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.panel-header svg {
    color: var(--accent-color);
}

/* -------------------------------------
   Interactive Dropzone
   ------------------------------------- */
.dropzone {
    border: 2px dashed var(--border-hover);
    border-radius: var(--radius-md);
    padding: 3rem 1.5rem;
    text-align: center;
    cursor: pointer;
    background-color: var(--bg-color);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    min-height: 280px;
}
.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-color);
    background-color: #F8F7F4;
}
.dropzone svg {
    color: var(--text-secondary);
    transition: color 0.2s ease;
}
.dropzone:hover svg {
    color: var(--accent-color);
}
.dropzone-text {
    font-family: var(--font-header);
    font-size: 1.25rem;
    color: var(--text-primary);
}
.dropzone-sub {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* -------------------------------------
   Previews & Outputs
   ------------------------------------- */
.image-preview-container {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}
.image-preview {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-color);
}
.image-info {
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* -------------------------------------
   Buttons & Forms
   ------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.btn:hover:not(:disabled) {
    border-color: var(--text-primary);
}
.btn-primary {
    background-color: var(--accent-color);
    color: #FFF;
    border-color: var(--accent-color);
    font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #FFF;
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-group { margin-bottom: 1.5rem; }
.form-label {
    display: block;
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}
.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-color);
    transition: border-color 0.2s ease, background-color 0.2s ease;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: var(--surface-color);
}

/* -------------------------------------
   Data Displays
   ------------------------------------- */
.kv-list { display: flex; flex-direction: column; gap: 0.5rem; }
.kv-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
}
.kv-key { font-weight: 500; font-size: 0.9rem; }
.kv-value {
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--text-secondary);
    word-break: break-all;
    max-width: 60%;
    text-align: right;
}

.status-box {
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}
.status-clean {
    border-color: var(--success-border);
    background-color: var(--success-bg);
    color: var(--success-text);
}
.status-flagged {
    border-color: var(--danger-border);
    background-color: var(--danger-bg);
    color: var(--danger-text);
}

/* -------------------------------------
   Ads & Footer
   ------------------------------------- */
.ad-container {
    margin: 3rem auto;
    text-align: center;
    min-height: 90px;
    border: 1px dashed var(--border-hover);
    border-radius: var(--radius-md);
    background-color: rgba(255,255,255,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.prose h2 { margin-top: 3rem; margin-bottom: 1.25rem; font-family: var(--font-header); font-size: 1.75rem; }
.prose p { margin-bottom: 1.25rem; color: var(--text-secondary); font-size: 1.05rem; }
.prose ul { margin-bottom: 1.25rem; padding-left: 1.5rem; color: var(--text-secondary); font-size: 1.05rem; }
.prose li { margin-bottom: 0.5rem; }

.footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 1.5rem;
    margin-top: 4rem;
    background-color: var(--surface-color);
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}
.footer-links { display: flex; gap: 2.5rem; font-size: 1rem; font-weight: 500;}
.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent-color); }
.footer-credits { font-size: 0.9rem; color: var(--text-secondary); }