:root {
    color-scheme: light dark;
    --color-background: #f5f7fb;
    --color-surface: #ffffff;
    --color-surface-muted: #e8eef8;
    --color-text: #172033;
    --color-text-muted: #4b5563;
    --color-border: #64748b;
    --color-accent: #1d4ed8;
    --color-accent-hover: #1e40af;
    --color-accent-text: #ffffff;
    --color-danger: #b42318;
    --color-danger-background: #fef3f2;
    --color-focus: #0f766e;
    --shadow-card: 0 0.75rem 2rem rgb(15 23 42 / 12%);
    font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #0f172a;
        --color-surface: #172033;
        --color-surface-muted: #253149;
        --color-text: #f8fafc;
        --color-text-muted: #cbd5e1;
        --color-border: #94a3b8;
        --color-accent: #93c5fd;
        --color-accent-hover: #bfdbfe;
        --color-accent-text: #0f172a;
        --color-danger: #fca5a5;
        --color-danger-background: #4c1d1d;
        --color-focus: #facc15;
        --shadow-card: 0 0.75rem 2rem rgb(0 0 0 / 30%);
    }
}

* {
    box-sizing: border-box;
}

html {
    min-width: 20rem;
    background: var(--color-background);
}

body {
    min-width: 20rem;
    min-height: 100vh;
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-size: 1rem;
    line-height: 1.5;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 0.1875rem solid var(--color-focus);
    outline-offset: 0.1875rem;
}

.skip-link {
    position: absolute;
    z-index: 10;
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.75rem 1rem;
    transform: translateY(-150%);
    border-radius: 0.375rem;
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: var(--shadow-card);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-shell {
    min-height: 100vh;
}

.site-header {
    border-bottom: 0.0625rem solid var(--color-border);
    background: var(--color-surface);
}

.site-header__content,
.page-container {
    width: min(100% - 2rem, 70rem);
    margin-inline: auto;
}

.site-header__content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    min-height: 4rem;
    padding-block: 0.5rem;
}

.brand {
    color: var(--color-text);
    font-size: 1.125rem;
    font-weight: 750;
    text-decoration: none;
}

.primary-navigation,
.navigation-actions {
    display: flex;
    flex: 1 1 100%;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.navigation-actions {
    justify-content: space-between;
}

.navigation-link,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.625rem 1rem;
    border: 0.0625rem solid transparent;
    border-radius: 0.5rem;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
}

.navigation-link {
    color: var(--color-text);
}

.navigation-link:hover {
    background: var(--color-surface-muted);
    color: var(--color-text);
}

.logout-form {
    margin: 0;
}

.button {
    cursor: pointer;
}

.button--primary {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-accent-text);
}

.button--primary:hover {
    border-color: var(--color-accent-hover);
    background: var(--color-accent-hover);
    color: var(--color-accent-text);
}

.button:disabled {
    cursor: not-allowed;
    opacity: 0.65;
}

.button--secondary {
    border-color: var(--color-border);
    background: transparent;
    color: var(--color-text);
}

.page-container {
    padding-block: clamp(1.5rem, 5vw, 4rem);
}

.content-card {
    max-width: 38rem;
    padding: clamp(1.25rem, 5vw, 2.5rem);
    border: 0.0625rem solid var(--color-border);
    border-radius: 0.875rem;
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
}

.content-card--centered {
    margin-inline: auto;
}

.content-card,
.page-introduction,
.validation-summary-errors {
    overflow-wrap: anywhere;
}

.page-title {
    margin: 0;
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    line-height: 1.15;
}

.page-introduction {
    margin: 1rem 0 0;
    color: var(--color-text-muted);
}

.price-list-status {
    margin: 1rem 0 0;
    color: var(--color-text-muted);
}

.price-list-response {
    max-width: 100%;
    max-height: 28rem;
    margin: 1rem 0 0;
    padding: 1rem;
    overflow: auto;
    border: 0.0625rem solid var(--color-border);
    border-radius: 0.5rem;
    background: var(--color-surface-muted);
    color: var(--color-text);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.875rem;
    white-space: pre-wrap;
}

.stack {
    display: grid;
    gap: 1rem;
}

.form-field {
    display: grid;
    gap: 0.5rem;
}

.form-field label {
    font-weight: 700;
}

.form-field input {
    width: 100%;
    min-width: 0;
    min-height: 2.75rem;
    padding: 0.625rem 0.75rem;
    border: 0.125rem solid var(--color-border);
    border-radius: 0.5rem;
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
}

.form-field input.input-validation-error {
    border-color: var(--color-danger);
}

.field-validation-error,
.validation-summary-errors {
    color: var(--color-danger);
    font-weight: 650;
}

.validation-summary-errors {
    padding: 0.875rem 1rem;
    border-inline-start: 0.25rem solid var(--color-danger);
    border-radius: 0.375rem;
    background: var(--color-danger-background);
}

.validation-summary-errors ul {
    margin: 0;
    padding-inline-start: 1.25rem;
}

.form-actions {
    display: grid;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.form-actions .button {
    width: 100%;
}

.status-card {
    text-align: left;
}

.status-code {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@media (min-width: 48rem) {
    .primary-navigation,
    .navigation-actions {
        flex: 0 1 auto;
    }

    .site-header__content {
        flex-wrap: nowrap;
    }

    .navigation-actions {
        justify-content: flex-end;
    }

    .form-actions .button {
        width: auto;
        justify-self: start;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}