:root {
    /* Minimal Dark Palette */
    --bg-main: #09090b;
    --bg-surface: #18181b;
    --bg-hover: #27272a;
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --accent-color: #3b82f6; /* Accent Blue */
    --border-color: #27272a;
    --error-color: #ef4444;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Forms & Buttons */
label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}
input, select, textarea {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 6px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 1.25rem;
    transition: border-color 0.2s;
}
input:focus { outline: none; border-color: var(--accent-color); }

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    width: 100%;
    transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.9; }

/* Centered Screen Layout (Login) */
.full-center {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}
.login-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    width: 100%;
    max-width: 380px;
}
.login-card h2 { margin-top: 0; margin-bottom: 2rem; text-align: center; }
.error-msg { color: var(--error-color); margin-bottom: 1rem; font-size: 0.875rem; background: rgba(239, 68, 68, 0.1); padding: 0.75rem; border-radius: 6px;}

/* Dashboard Shell Layout */
.dashboard-layout {
    display: flex;
    flex-direction: row;
    height: 100vh;
    overflow: hidden;
}
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 0;
}
.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 600;
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.nav-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0 1rem;
    overflow-y: auto;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.95rem;
}
.nav-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.nav-link:hover { background-color: var(--bg-hover); color: var(--text-primary); }
.nav-link.active { background-color: var(--bg-hover); color: var(--accent-color); }

.sidebar-footer {
    padding: 1rem 1.5rem 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.sidebar-footer .user-name { font-weight: 500; color: var(--text-primary); margin-bottom: 0.5rem;}
.sidebar-footer .logout { color: var(--error-color); text-decoration: none; font-weight: 500;}
.sidebar-footer .logout:hover { text-decoration: underline; }

.main-content {
    flex: 1;
    padding: 2.5rem;
    overflow-y: auto;
    background-color: var(--bg-main);
}
.main-content h1 { margin-top: 0; font-size: 1.75rem; margin-bottom: 2rem;}

/* Mobile Collapse */
@media (max-width: 768px) {
    .dashboard-layout { flex-direction: column; }
    .sidebar { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border-color); padding: 1rem 0; }
    .sidebar-brand { display: none; }
    .nav-items { flex-direction: row; overflow-x: auto; padding: 0 1rem; }
    .nav-link span { display: none; } /* Hide text, keep icons */
    .sidebar-footer { display: flex; justify-content: space-between; padding: 1rem 1.5rem 0; }
    .sidebar-footer .user-name { margin-bottom: 0; }
}

/* Cards & Badges */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.card h2 { margin-top: 0; font-size: 1.25rem; margin-bottom: 1rem; }
.card-desc { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 0.9rem; line-height: 1.5;}

.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
}
.badge-not_downloaded { background: #3f3f46; color: #e4e4e7; }
.badge-downloading { background: #2563eb; color: #eff6ff; }
.badge-ready { background: #16a34a; color: #f0fdf4; }
.badge-failed { background: #dc2626; color: #fef2f2; }

/* Alerts/Messages */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}
.alert-success { background-color: rgba(22, 163, 74, 0.1); border: 1px solid #16a34a; color: #4ade80; }
.alert-info { background-color: rgba(37, 99, 235, 0.1); border: 1px solid #2563eb; color: #60a5fa; }

/* Tables */
.table-wrapper {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}
table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}
th, td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}
th { font-weight: 600; color: var(--text-secondary); background-color: rgba(0,0,0,0.2); }
tr:last-child td { border-bottom: none; }
tr:hover { background-color: var(--bg-hover); }

/* Badges extended */
.badge-pending { background: #3f3f46; color: #e4e4e7; }
.badge-indexed { background: #16a34a; color: #f0fdf4; }
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}
.badge-indexing { 
    background: #2563eb; 
    color: #eff6ff; 
    animation: pulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Actions & Utilities */
.header-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.btn-secondary { background-color: var(--bg-hover); color: var(--text-primary); border: 1px solid var(--border-color); padding: 0.75rem 1rem; border-radius: 6px; cursor: pointer; text-decoration: none; font-weight: 500; display: inline-block;}
.btn-secondary:hover { background-color: #3f3f46; }
.btn-danger { background-color: rgba(239, 68, 68, 0.1); color: var(--error-color); border: 1px solid var(--error-color); padding: 0.75rem 1rem; border-radius: 6px; cursor: pointer; font-weight: 500;}
.btn-danger:hover { background-color: var(--error-color); color: #fff; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.875rem; }
.flex-gap { display: flex; gap: 0.5rem; align-items: center; }

/* Split Forms Layout */
.split-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}
.form-pane { flex: 1; }
.preview-pane {
    width: 340px;
    position: sticky;
    top: 2rem;
}
@media (max-width: 900px) {
    .split-layout { flex-direction: column; }
    .preview-pane { width: 100%; position: static; }
}

/* Chatbot Widget Preview Mock */
.mock-widget {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    height: 400px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}
.mock-header {
    color: white;
    padding: 1rem;
    font-weight: 600;
    text-align: center;
}
.mock-body {
    flex: 1;
    background: var(--bg-main);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.mock-bubble {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    font-size: 0.875rem;
    max-width: 80%;
}
.mock-bubble.bot { background: var(--bg-surface); border: 1px solid var(--border-color); align-self: flex-start; border-bottom-left-radius: 4px; }
.mock-bubble.user { color: white; align-self: flex-end; border-bottom-right-radius: 4px; }