:root {
    color-scheme: light;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --color-bg: #f7f8f7;
    --color-surface: #ffffff;
    --color-surface-muted: #eef3f1;
    --color-border: #d9dfdc;
    --color-border-strong: #aeb9b4;
    --color-text: #17211d;
    --color-text-muted: #60706a;
    --color-accent: #0f766e;
    --color-accent-hover: #115e59;
    --color-on-accent: #ffffff;
    --color-danger: #b42318;
    --color-danger-bg: #fff0ed;
    --color-success: #147d4f;
    --color-success-bg: #e8f7ef;
    --color-warning: #9a6700;
    --color-warning-bg: #fff6d7;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --color-bg: #101412;
        --color-surface: #171d1a;
        --color-surface-muted: #202823;
        --color-border: #303a35;
        --color-border-strong: #46524c;
        --color-text: #eef3f0;
        --color-text-muted: #a8b5af;
        --color-accent: #5eead4;
        --color-accent-hover: #99f6e4;
        --color-on-accent: #0b1714;
        --color-danger: #f97066;
        --color-danger-bg: rgba(249, 112, 102, 0.12);
        --color-success: #86efac;
        --color-success-bg: rgba(134, 239, 172, 0.12);
        --color-warning: #facc15;
        --color-warning-bg: rgba(250, 204, 21, 0.12);
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.32);
    }
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.55;
    background: var(--color-bg);
    color: var(--color-text);
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2 {
    margin: 0;
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: var(--text-2xl);
}

h2 {
    font-size: var(--text-lg);
}

button,
input,
textarea {
    font: inherit;
}

button {
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    min-height: 38px;
    padding: var(--space-2) var(--space-4);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.52;
}

.material-symbols-outlined {
    font-size: 1.15rem;
    line-height: 1;
}

.app-shell,
.public-shell {
    min-height: 100vh;
}

.topbar,
.public-topbar {
    height: 58px;
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: 0 var(--space-8);
    border-bottom: 1px solid var(--color-border);
    background: color-mix(in srgb, var(--color-surface) 92%, transparent);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    flex-shrink: 0;
}

.brand:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex: 1;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
    background: var(--color-surface-muted);
    color: var(--color-text);
    text-decoration: none;
}

.topbar-end {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.logout-link {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
}

.app-main {
    width: min(1100px, calc(100% - 32px));
    margin: 0 auto;
    padding: var(--space-8) 0 var(--space-10);
}

.public-main {
    width: min(620px, calc(100% - 32px));
    margin: 0 auto;
    padding: var(--space-10) 0;
}

.page-header,
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.page-header {
    margin-bottom: var(--space-6);
}

.tool-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.danger-panel {
    border-color: color-mix(in srgb, var(--color-danger) 24%, var(--color-border));
}

.inline-form,
.secret-form {
    display: grid;
    gap: var(--space-4);
    margin-top: var(--space-5);
}

.inline-form {
    grid-template-columns: minmax(180px, 1fr) auto auto;
    align-items: end;
}

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-width: 0;
}

.field span {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
}

.field-grow {
    min-width: 220px;
}

.field-compact {
    max-width: 220px;
}

.form-input,
.form-textarea {
    width: 100%;
    border: 1px solid var(--color-border-strong);
    background: var(--color-surface);
    color: var(--color-text);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    min-height: 40px;
}

.form-textarea {
    resize: vertical;
    min-height: 104px;
}

.form-input:focus,
.form-textarea:focus {
    outline: 2px solid color-mix(in srgb, var(--color-accent) 28%, transparent);
    border-color: var(--color-accent);
}

.code-input {
    font-family: ui-monospace, SFMono-Regular, Consolas, 'Liberation Mono', monospace;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-on-accent);
    font-weight: 700;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

.btn-secondary {
    background: transparent;
    border-color: var(--color-border-strong);
    color: var(--color-text);
    font-weight: 700;
}

.btn-secondary:hover:not(:disabled),
.icon-button:hover:not(:disabled) {
    background: var(--color-surface-muted);
}

.danger-action {
    color: var(--color-danger);
    border-color: color-mix(in srgb, var(--color-danger) 36%, var(--color-border));
}

.icon-button {
    width: 38px;
    height: 38px;
    padding: 0;
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text-muted);
    flex: 0 0 auto;
}

.icon-button.danger {
    color: var(--color-danger);
}

.status-pill,
.message {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 700;
}

.status-unlocked,
.message-success {
    color: var(--color-success);
    background: var(--color-success-bg);
    border: 1px solid color-mix(in srgb, var(--color-success) 28%, transparent);
}

.status-locked {
    color: var(--color-warning);
    background: var(--color-warning-bg);
    border: 1px solid color-mix(in srgb, var(--color-warning) 28%, transparent);
}

.message {
    margin-bottom: var(--space-5);
}

.message-error {
    color: var(--color-danger);
    background: var(--color-danger-bg);
    border: 1px solid color-mix(in srgb, var(--color-danger) 32%, transparent);
}

.secret-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.secret-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-4);
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.secret-row-main {
    min-width: 0;
}

.secret-row-title {
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.secret-row-meta {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    margin-bottom: var(--space-3);
}

.secret-output,
.secret-placeholder {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface-muted);
    color: var(--color-text);
    padding: var(--space-3);
}

.secret-output {
    resize: vertical;
    min-height: 84px;
}

.secret-placeholder {
    color: var(--color-text-muted);
}

.secret-row-actions {
    display: flex;
    align-items: start;
    gap: var(--space-2);
}

.empty-state {
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    padding: var(--space-8);
    text-align: center;
    margin-top: var(--space-5);
}

.share-result {
    margin-top: var(--space-5);
    display: grid;
    gap: var(--space-4);
}

.share-bundle-button {
    justify-self: start;
}

.copy-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-2);
    align-items: center;
}

.share-open-main {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.share-open-panel {
    width: 100%;
}

.secret-result {
    margin-bottom: var(--space-4);
}

#blazor-error-ui {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--color-danger);
    background: var(--color-danger-bg);
    color: var(--color-text);
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    float: right;
}

@media (max-width: 720px) {
    .topbar,
    .public-topbar {
        padding: 0 var(--space-4);
        gap: var(--space-3);
    }

    .topbar-nav span:not(.material-symbols-outlined) {
        display: none;
    }

    .topbar-end {
        gap: var(--space-2);
    }

    .app-main,
    .public-main {
        width: min(100% - 24px, 1100px);
        padding-top: var(--space-5);
    }

    .tool-panel {
        padding: var(--space-4);
    }

    .inline-form,
    .secret-row {
        grid-template-columns: 1fr;
    }

    .secret-row-actions {
        justify-content: flex-start;
    }

    button,
    .form-input,
    .form-textarea {
        min-height: 44px;
    }
}