:root {
    --primary: #00a8ff;
    --secondary: #646f79;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #eeeeee;
    --hover-bg: #f0f8ff;
    --sidebar-width: 260px;
}

html, body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-bg);
}

/* Sidebar Layout */
.sidebar {
    width: var(--sidebar-width);
    background: #f8f9fa;
    border-right: 1px solid #e9ecef;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1040;
    transition: transform 0.3s ease;
}

.main-area {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
}

.topbar {
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1030;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.sidebar-open {
        transform: translateX(0);
    }
    .main-area {
        margin-left: 0;
    }
}

a, .btn-link {
    color: var(--primary);
}

.btn-primary {
    color: #fff;
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: #0090d9;
    border-color: #0090d9;
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: #fff;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--primary);
}

/* Layout */
.layout-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding-top: 76px; /* navbar height + spacing */
    padding-bottom: 2rem;
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
}

.card.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.05) !important;
}

/* Table hover */
.table-hover tbody tr:hover {
    background-color: var(--hover-bg);
}

/* Conversation bubbles */
.conversation-bubble-mine {
    background-color: var(--primary);
    color: #fff;
    border-radius: 1rem 1rem 0.25rem 1rem;
}

.conversation-bubble-theirs {
    background-color: #f1f3f5;
    color: #333;
    border-radius: 1rem 1rem 1rem 0.25rem;
}

/* Navbar customization */
.navbar .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    transition: color 0.2s;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: #fff !important;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNTYiIGhlaWdodD0iNDkiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIG92ZXJmbG93PSJoaWRkZW4iPjxkZWZzPjxjbGlwUGF0aCBpZD0iY2xpcDAiPjxyZWN0IHg9IjIzNSIgeT0iNTEiIHdpZHRoPSI1NiIgaGVpZ2h0PSI0OSIvPjwvY2xpcFBhdGg+PC9kZWZzPjxnIGNsaXAtcGF0aD0idXJsKCNjbGlwMCkiIHRyYW5zZm9ybT0idHJhbnNsYXRlKC0yMzUgLTUxKSI+PHBhdGggZD0iTTI2My41MDYgNTFDMjY0LjcxNyA1MSAyNjUuODEzIDUxLjQ4MzcgMjY2LjYwNiA1Mi4yNjU4TDI2Ny4wNTIgNTIuNzk4NyAyNjcuNTM5IDUzLjYyODMgMjkwLjE4NSA5Mi4xODMxIDI5MC41NDUgOTIuNzk1IDI5MC42NTYgOTIuOTk2QzI5MC44NzcgOTMuNTEzIDI5MSA5NC4wODE1IDI5MSA5NC42NzgyIDI5MSA5Ny4wNjUxIDI4OS4wMzggOTkgMjg2LjYxNyA5OUwyNDAuMzgzIDk5QzIzNy45NjMgOTkgMjM2IDk3LjA2NTEgMjM2IDk0LjY3ODIgMjM2IDk0LjM3OTkgMjM2LjAzMSA5NC4wODg2IDIzNi4wODkgOTMuODA3MkwyMzYuMzM4IDkzLjAxNjIgMjM2Ljg1OCA5Mi4xMzE0IDI1OS40NzMgNTMuNjI5NCAyNTkuOTYxIDUyLjc5ODUgMjYwLjQwNyA1Mi4yNjU4QzI2MS4yIDUxLjQ4MzcgMjYyLjI5NiA1MSAyNjMuNTA2IDUxWk0yNjMuNTg2IDY2LjAxODNDMjYwLjczNyA2Ni4wMTgzIDI1OS4zMTMgNjcuMTI0NSAyNTkuMzEzIDY5LjMzNyAyNTkuMzEzIDY5LjYxMDIgMjU5LjMzMiA2OS44NjA4IDI1OS4zNzEgNzAuMDg4N0wyNjEuNzk1IDg0LjAxNjEgMjY1LjM4IDg0LjAxNjEgMjY3LjgyMSA2OS43NDc1QzI2Ny44NiA2OS43MzA5IDI2Ny44NzkgNjkuNTg3NyAyNjcuODc5IDY5LjMxNzkgMjY3Ljg3OSA2Ny4xMTgyIDI2Ni40NDggNjYuMDE4MyAyNjMuNTg2IDY2LjAxODNaTTI2My41NzYgODYuMDU0N0MyNjEuMDQ5IDg2LjA1NDcgMjU5Ljc4NiA4Ny4zMDA1IDI1OS43ODYgODkuNzkyMSAyNTkuNzg2IDkyLjI4MzcgMjYxLjA0OSA5My41Mjk1IDI2My41NzYgOTMuNTI5NSAyNjYuMTE2IDkzLjUyOTUgMjY3LjM4NyA5Mi4yODM3IDI2Ny4zODcgODkuNzkyMSAyNjcuMzg3IDg3LjMwMDUgMjY2LjExNiA4Ni4wNTQ3IDI2My41NzYgODYuMDU0N1oiIGZpbGw9IiNGRkU1MDAiIGZpbGwtcnVsZT0iZXZlbm9kZCIvPjwvZz48L3N2Zz4=) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* Sidebar Navigation */
.sidebar-link {
    color: #495057;
    font-size: 0.875rem;
    transition: all 0.15s ease;
}

.sidebar-link:hover {
    background-color: #e9f5ff;
    color: #00a8ff;
}

.sidebar-link.active {
    background-color: #00a8ff !important;
    color: #fff !important;
}

.sidebar-link.active i {
    color: #fff !important;
}

/* Guide Content Styles */
.guide-content h1, .guide-content h2, .guide-content h3,
.guide-content h4, .guide-content h5, .guide-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.guide-content p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.guide-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin: 1rem 0;
}

.guide-content ol, .guide-content ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.guide-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.guide-content pre, .guide-content code {
    background: #f4f5f7;
    border-radius: 0.25rem;
    padding: 0.2rem 0.4rem;
    font-size: 0.875rem;
}

.guide-content pre {
    padding: 1rem;
    overflow-x: auto;
}

.guide-content blockquote {
    border-left: 4px solid #00a8ff;
    padding: 0.75rem 1rem;
    margin: 1rem 0;
    background: #f8f9fa;
    border-radius: 0 0.25rem 0.25rem 0;
}