:root {
    --background: #f6f7f9;
    --surface: #ffffff;
    --text: #1f2933;
    --muted: #667085;
    --border: #d0d5dd;
    --primary: #1f2937;
    --primary-hover: #111827;
    --error-bg: #fff1f1;
    --error-border: #ffb4b4;
    --success-bg: #ecfdf3;
    --success-border: #86d7a6;
    --info-bg: #eff6ff;
    --info-border: #93c5fd;
    --warning-bg: #fffbeb;
    --warning-border: #f5c451;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
}

.page {
    width: min(960px, calc(100% - 32px));
    margin: 40px auto;
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0 0 8px;
    font-size: 2rem;
}

.page-header p {
    margin: 0;
    color: var(--muted);
}

.session-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 0.95rem;
    white-space: nowrap;
}

.session-controls form {
    margin: 0;
}

.logout-button {
    margin-top: 0;
    padding: 8px 12px;
}

.card {
    margin-bottom: 24px;
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow:
        0 8px 24px
        rgba(15, 23, 42, 0.04);
}

.card h2 {
    margin-top: 0;
}

.login-card {
    width: min(480px, 100%);
    margin-right: auto;
    margin-left: auto;
}

.login-error {
    padding: 11px 12px;
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 10px;
}

label {
    display: block;
    margin: 18px 0 8px;
    font-weight: 600;
}

select,
input,
textarea {
    width: 100%;
    padding: 12px;
    font: inherit;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 10px;
}

textarea {
    resize: vertical;
}

button {
    margin-top: 18px;
    padding: 12px 18px;
    font: inherit;
    font-weight: 600;
    color: white;
    cursor: pointer;
    background: var(--primary);
    border: none;
    border-radius: 10px;
}

button:hover {
    background: var(--primary-hover);
}

button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.provider-settings {
    margin: 22px 0;
    padding: 18px;
    background: #f9fafb;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.provider-settings[hidden],
.custom-model[hidden],
.loading-indicator[hidden] {
    display: none;
}

.provider-settings h3 {
    margin: 0 0 4px;
}

.secondary-button {
    color: var(--primary);
    background: #ffffff;
    border: 1px solid var(--border);
}

.secondary-button:hover {
    background: #f3f4f6;
}

.status-message {
    min-height: 1.5em;
    margin: 10px 0 0;
    font-size: 0.95rem;
}

.status-success {
    color: #087443;
}

.status-warning {
    color: #92400e;
}

.status-error {
    color: #b42318;
}

.configuration-status {
    padding: 11px 12px;
    font-size: 0.95rem;
    border: 1px solid;
    border-radius: 10px;
}

.configuration-success {
    background: var(--success-bg);
    border-color: var(--success-border);
}

.configuration-info {
    background: var(--info-bg);
    border-color: var(--info-border);
}

.configuration-warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
}

.hint {
    color: var(--muted);
    font-size: 0.95rem;
}

.loading-indicator {
    margin-top: 16px;
    padding: 14px 16px;
    background: var(--info-bg);
    border: 1px solid var(--info-border);
    border-radius: 10px;
}

.loading-bar {
    width: 100%;
    height: 8px;
    overflow: hidden;
    background: #dbeafe;
    border-radius: 999px;
}

.loading-bar span {
    display: block;
    width: 40%;
    height: 100%;
    background: #2563eb;
    border-radius: inherit;
    animation:
        loading-slide
        1.2s
        ease-in-out
        infinite;
}

.loading-message {
    margin: 12px 0 0;
    font-weight: 600;
}

.loading-hint {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.error {
    background: var(--error-bg);
    border-color: var(--error-border);
}

.metadata {
    display: grid;
    grid-template-columns:
        repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 20px;
}

.metadata div {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.metadata dt {
    color: var(--muted);
    font-size: 0.9rem;
}

.metadata dd {
    margin: 4px 0 0;
    font-weight: 600;
}

.feedback {
    padding: 16px;
    overflow-x: auto;
    font: inherit;
    white-space: pre-wrap;
    background: #f9fafb;
    border: 1px solid var(--border);
    border-radius: 10px;
}

@keyframes loading-slide {
    from {
        transform: translateX(-110%);
    }

    to {
        transform: translateX(360%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .loading-bar span {
        animation: none;
        transform: translateX(75%);
    }
}

@media (max-width: 700px) {
    .page-header,
    .session-controls {
        align-items: stretch;
        flex-direction: column;
    }

    .session-controls {
        gap: 8px;
        white-space: normal;
    }

    .metadata {
        grid-template-columns: 1fr;
    }
}