html, body {
    font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 15px;
    color: #1f2933;
    margin: 0;
    background: #f7f8fa;
}

a {
    color: #1b6ec2;
}

h1 {
    margin-top: 0;
    font-size: 1.9rem;
}

.lead {
    font-size: 1.1rem;
    color: #52606d;
    max-width: 60ch;
}

/* ---- Layout ---- */
.page {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 230px;
    flex: 0 0 230px;
    background: linear-gradient(180deg, #2c3e50, #1a252f);
}

main {
    flex: 1;
    min-width: 0;
}

.content {
    padding: 1.5rem 2rem 3rem;
    max-width: 70rem;
}

.px-4 { padding-left: 2rem; padding-right: 2rem; }
.px-3 { padding-left: 1rem; padding-right: 1rem; }
.ps-3 { padding-left: 1rem; }

/* ---- Nav ---- */
.navbar-brand {
    color: #fff;
    font-weight: 600;
    font-size: 1.2rem;
    text-decoration: none;
}

.top-row {
    height: 3.5rem;
    display: flex;
    align-items: center;
    background: rgba(0,0,0,0.2);
}

.nav-scrollable {
    padding-top: 0.5rem;
}

.nav-item {
    padding: 0.15rem 1rem;
}

.nav-link {
    color: #cdd7e2;
    text-decoration: none;
    display: block;
    padding: 0.55rem 0.75rem;
    border-radius: 6px;
}

.nav-link:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.nav-link.active {
    background: #1b6ec2;
    color: #fff;
}

/* ---- Home cards ---- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.card {
    display: block;
    padding: 1rem 1.25rem;
    background: #fff;
    border: 1px solid #e1e5ea;
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow .15s, transform .15s;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}

.card h2 {
    margin: 0 0 0.35rem;
    font-size: 1.1rem;
    color: #1b6ec2;
}

.card p {
    margin: 0;
    color: #52606d;
    font-size: 0.9rem;
}

pre {
    background: #1a252f;
    color: #e6edf3;
    padding: 1rem 1.25rem;
    border-radius: 10px;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.5;
}

code {
    font-family: 'Cascadia Code', Consolas, monospace;
}

p > code, li > code {
    background: #eef1f4;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-size: 0.85em;
}

/* ---- Demo controls ---- */
.demo-controls {
    background: #eef4fb;
    border: 1px solid #cfe0f3;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin: 1.25rem 0;
}

.demo-controls label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-right: 1.5rem;
}

.demo-controls .hint {
    margin: 0.75rem 0 0;
    color: #52606d;
    font-size: 0.88rem;
}

/* ---- Rendered form (FormKit output) ---- */
.rendered-form {
    background: #fff;
    border: 1px solid #e1e5ea;
    border-radius: 10px;
    padding: 1.5rem;
    max-width: 36rem;
}

.formkit-field {
    margin-bottom: 1.1rem;
    display: flex;
    flex-direction: column;
}

.formkit-field label {
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.formkit-field input,
.formkit-field select,
.formkit-field textarea {
    padding: 0.5rem 0.65rem;
    border: 1px solid #c2ccd6;
    border-radius: 6px;
    font: inherit;
    width: 100%;
    box-sizing: border-box;
}

.formkit-field input[type=checkbox] {
    width: auto;
    align-self: flex-start;
}

.formkit-field small {
    color: #6b7785;
    margin-top: 0.3rem;
    font-size: 0.82rem;
}

fieldset {
    border: 1px solid #d6dde4;
    border-radius: 8px;
    padding: 1rem 1.25rem 0.25rem;
    margin: 0 0 1.25rem;
}

legend {
    font-weight: 700;
    padding: 0 0.4rem;
    color: #1b6ec2;
}

section[aria-label] {
    border-left: 3px solid #1b6ec2;
    padding-left: 1rem;
    margin-bottom: 1.5rem;
}

section[aria-label] h3 {
    margin: 0 0 0.75rem;
}

.validation-message {
    color: #e50000;
}

/* ---- WASM loading splash ---- */
.app-loading {
    padding: 3rem;
    font-size: 1.1rem;
    color: #52606d;
}

/* ---- Renderer toggle ---- */
.renderer-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0 0 1.25rem;
    padding: 0.35rem 0.5rem;
    background: #eef1f4;
    border-radius: 8px;
}

.renderer-toggle-label {
    font-weight: 600;
    margin-right: 0.25rem;
    color: #3e4c59;
}

.renderer-toggle button {
    border: 1px solid transparent;
    background: transparent;
    padding: 0.35rem 0.9rem;
    border-radius: 6px;
    cursor: pointer;
    font: inherit;
    color: #3e4c59;
}

.renderer-toggle button:hover {
    background: #e0e6ec;
}

.renderer-toggle button.active {
    background: #1b6ec2;
    color: #fff;
    border-color: #1b6ec2;
}

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffe9e9;
    border-top: 1px solid #f5c2c2;
    padding: 0.7rem 1.25rem;
    box-shadow: 0 -1px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

/* ---- Multi-step wizard ---- */
.formkit-steps {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
    flex-wrap: wrap;
}

.formkit-step {
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    background: #eef1f4;
    color: #52606d;
    font-size: 0.9rem;
}

.formkit-step.active {
    background: #1b6ec2;
    color: #fff;
    font-weight: 600;
}

.formkit-step.done {
    background: #d3e8d3;
    color: #2f6f2f;
}

.formkit-step-panel {
    border-left: 3px solid #1b6ec2;
    padding-left: 1rem;
    margin-bottom: 1.25rem;
}

.formkit-step-panel h3 {
    margin-top: 0;
}

.formkit-step-nav {
    display: flex;
    gap: 0.5rem;
}

.formkit-button {
    border: 1px solid #1b6ec2;
    background: #1b6ec2;
    color: #fff;
    padding: 0.45rem 1.1rem;
    border-radius: 6px;
    cursor: pointer;
    font: inherit;
}

.formkit-button:hover {
    background: #155a9c;
}

/* ---- Radio group ---- */
.formkit-radiogroup {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.formkit-radio {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.formkit-radio label {
    font-weight: 400;
    margin: 0;
}

/* ---- Collection field ---- */
.formkit-collection {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.formkit-collection-item {
    border: 1px solid #d6dde4;
    border-radius: 8px;
    padding: 1rem 1.25rem 0.75rem;
    margin: 0;
}

.formkit-collection-item legend {
    font-weight: 600;
    color: #3e4c59;
    padding: 0 0.4rem;
}