:root,
html[data-theme="dark"] {
    color-scheme: dark;
    --ink: #f3f6fa;
    --muted: #aab7c8;
    --line: #293a51;
    --paper: #09121f;
    --surface: #111d2e;
    --surface-elevated: #17253a;
    --surface-soft: #132136;
    --surface-tint: #123033;
    --surface-tint-strong: #17393a;
    --surface-warm: #2a241a;
    --surface-code: #08101c;
    --code-text: #dce6f2;
    --accent: #2ec4b6;
    --accent-dark: #5eead4;
    --accent-contrast: #07141d;
    --gold: #e5b85c;
    --blue: #8ab4ff;
    --focus: #5eead4;
    --success-text: #6ee7b7;
    --success-surface: #102d2a;
    --success-line: #287c68;
    --warning-text: #f6c970;
    --warning-surface: #302719;
    --warning-line: #82672b;
    --danger-text: #fda29b;
    --danger-surface: #351d24;
    --danger-line: #934943;
    --background: var(--paper);
    --surface-raised: var(--surface-elevated);
    --surface-muted: var(--surface-soft);
    --text: var(--ink);
    --border: var(--line);
    --border-strong: #3c4c61;
    --accent-hover: var(--accent-dark);
    --accent-soft: var(--surface-tint);
    --danger: #a93632;
    --status: var(--success-surface);
    --status-border: var(--success-line);
    --sidebar: #0d1828;
    --sidebar-text: var(--ink);
    --sidebar-muted: var(--muted);
    --sidebar-hover: var(--surface-tint);
    --shadow-sm: 0 12px 40px rgba(0, 0, 0, .22);
    --shadow-lg: 0 24px 80px rgba(0, 0, 0, .34);
    font-family: Avenir, "Avenir Next", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 20rem;
    background: #09121f;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 12% 10%, rgba(229, 184, 92, .1), transparent 34rem),
        radial-gradient(circle at 85% 6%, rgba(46, 196, 182, .13), transparent 30rem),
        linear-gradient(180deg, #09121f 0%, #0b1625 48%, #08111d 100%);
    color: var(--text);
    font-size: 1rem;
    line-height: 1.55;
}

body[data-nav-open="true"] {
    overflow: hidden;
}

a {
    color: var(--accent);
    text-underline-offset: .18em;
}

a:hover {
    text-decoration-thickness: .13em;
}

a:focus-visible,
button:focus-visible,
textarea:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: .52;
}

[hidden] {
    display: none !important;
}

.config-backdrop[hidden] {
    display: none !important;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.skip-link {
    position: fixed;
    top: .75rem;
    left: .75rem;
    z-index: 100;
    padding: .6rem .85rem;
    border-radius: .5rem;
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-lg);
    transform: translateY(-180%);
}

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

.app-frame {
    display: grid;
    grid-template-columns: 17rem minmax(0, 1fr);
    min-height: 100vh;
}

.app-sidebar {
    position: sticky;
    top: 0;
    z-index: 30;
    display: grid;
    grid-template-rows: auto 1fr auto;
    width: 17rem;
    height: 100vh;
    padding: 1rem;
    overflow: hidden;
    background: var(--sidebar);
    border-right: 1px solid rgba(170, 183, 200, .18);
    color: var(--sidebar-text);
    transition: width .18s ease;
}

.sidebar-heading,
.sidebar-nav a,
.back-link,
.privacy-status {
    display: flex;
    align-items: center;
}

.sidebar-heading {
    min-width: 14.75rem;
    justify-content: space-between;
    gap: .75rem;
    padding-bottom: 1rem;
}

.brand-lockup,
.mobile-brand-lockup {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: .7rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .72rem;
    color: var(--sidebar-text);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -.02em;
    text-decoration: none;
}

.product-brand,
.mobile-brand {
    color: var(--sidebar-text);
    font-weight: 780;
    letter-spacing: -.015em;
    text-decoration: none;
}

.brand-mark {
    display: inline-block;
    flex: 0 0 auto;
    background: var(--accent);
    color: var(--accent-contrast);
    font-weight: 800;
    border-radius: 999px;
    padding: 10px 12px;
    line-height: normal;
}

.icon-button {
    display: inline-grid;
    width: 2.5rem;
    height: 2.5rem;
    min-height: 0;
    padding: 0;
    place-items: center;
    border: 1px solid transparent;
    border-radius: .65rem;
    background: transparent;
    color: inherit;
    font-size: 1.3rem;
}

.icon-button:hover {
    background: var(--surface-tint);
}

.sidebar-nav {
    display: grid;
    align-content: start;
    gap: .35rem;
    min-width: 15rem;
    padding-top: .5rem;
}

.sidebar-nav a,
.back-link {
    gap: .78rem;
    min-height: 2.75rem;
    padding: .65rem .7rem;
    border-radius: .65rem;
    color: var(--sidebar-text);
    font-weight: 620;
    text-decoration: none;
}

.sidebar-nav a:hover,
.sidebar-nav a[aria-current="page"],
.back-link:hover {
    background: var(--sidebar-hover);
}

.nav-icon {
    display: inline-grid;
    width: 1.35rem;
    flex: 0 0 1.35rem;
    place-items: center;
    color: var(--sidebar-muted);
    font-size: 1.15rem;
}

.sidebar-bottom {
    display: grid;
    min-width: 15rem;
    gap: .75rem;
    border-top: 1px solid rgba(170, 183, 200, .18);
    padding-top: .8rem;
}

.privacy-status {
    gap: .8rem;
    padding: .65rem .7rem;
    color: var(--sidebar-muted);
    font-size: .82rem;
}

.privacy-status strong,
.privacy-status small {
    display: block;
}

.privacy-status strong {
    color: var(--sidebar-text);
    font-size: .88rem;
}

.privacy-dot {
    display: inline-block;
    width: .55rem;
    height: .55rem;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--success-text);
    box-shadow: 0 0 0 4px rgba(110, 231, 183, .13);
}

.app-column {
    min-width: 0;
}

.mobile-header {
    display: none;
}

.page-shell {
    width: min(100% - 2.5rem, 88rem);
    min-height: calc(100vh - 7rem);
    margin-inline: auto;
    padding-block: clamp(1.5rem, 3vw, 2.75rem);
}

.site-footer {
    width: min(100% - 2.5rem, 88rem);
    margin-inline: auto;
    padding: 1.25rem 0 1.75rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: .82rem;
}

.site-footer p {
    margin: .15rem 0;
}

body[data-nav-collapsed="true"] .app-frame {
    grid-template-columns: 7rem minmax(0, 1fr);
}

body[data-nav-collapsed="true"] .app-sidebar {
    width: 7rem;
}

body[data-nav-collapsed="true"] .nav-label,
body[data-nav-collapsed="true"] .sidebar-collapse .visually-hidden {
    display: none;
}

body[data-nav-collapsed="true"] .product-brand {
    display: none;
}

body[data-nav-collapsed="true"] .sidebar-heading {
    min-width: 0;
    flex-direction: column;
}

body[data-nav-collapsed="true"] .sidebar-nav,
body[data-nav-collapsed="true"] .sidebar-bottom {
    min-width: 0;
}

body[data-nav-collapsed="true"] .sidebar-collapse span[aria-hidden="true"] {
    transform: rotate(180deg);
}

.eyebrow {
    margin: 0;
    color: var(--accent);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    color: var(--text);
    line-height: 1.16;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.6rem);
    letter-spacing: -.04em;
}

h2 {
    font-size: 1.25rem;
}

h3 {
    font-size: 1rem;
}

.lede {
    max-width: 68ch;
    margin: 0;
    color: var(--muted);
    font-size: clamp(1.02rem, 1.6vw, 1.18rem);
}

.intro,
.vault-page,
.results-page {
    display: grid;
    gap: 1.25rem;
}

.intro > *,
.content-panel > *,
.status-panel > * {
    margin-block: 0;
}

.content-panel,
.status-panel,
.privacy-card {
    padding: clamp(1rem, 2.4vw, 1.4rem);
    border: 1px solid var(--border);
    border-radius: 1rem;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.status-panel {
    border-color: var(--status-border);
    background: var(--status);
}

.button,
button:not(.icon-button) {
    display: inline-flex;
    width: fit-content;
    min-height: 2.65rem;
    align-items: center;
    justify-content: center;
    padding: .62rem .95rem;
    border: 1px solid var(--accent);
    border-radius: .68rem;
    background: var(--accent);
    color: var(--accent-contrast);
    font-weight: 730;
    line-height: 1.2;
    text-decoration: none;
    transition: background-color .15s ease, border-color .15s ease, transform .15s ease;
}

.button:hover,
button:not(.icon-button):hover {
    border-color: var(--accent-hover);
    background: var(--accent-hover);
}

.button-secondary,
button.button-secondary {
    border-color: var(--line);
    background: var(--surface-tint);
    color: var(--accent-dark);
}

.button-secondary:hover,
button.button-secondary:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.button-danger,
button.button-danger {
    border-color: var(--danger);
    background: var(--danger);
    color: #fff;
}

code,
.prompt-body,
textarea {
    font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.full-hash {
    display: block;
    margin-top: .3rem;
    overflow-wrap: anywhere;
    color: var(--muted);
    font-size: .76rem;
}

details summary {
    cursor: pointer;
    color: var(--accent);
    font-weight: 720;
}

.variable-list {
    display: grid;
    gap: 1.15rem;
}

.variable-field,
.vault-field {
    display: grid;
    gap: .38rem;
}

.variable-field label,
.vault-field label,
.credential-panel > label {
    font-weight: 700;
}

.variable-field small,
.vault-field small,
.credential-panel small,
.privacy-note {
    color: var(--muted);
    font-size: .82rem;
}

textarea,
input:not([type="radio"]):not([type="checkbox"]):not([type="file"]),
select {
    width: 100%;
    min-height: 2.75rem;
    padding: .68rem .78rem;
    border: 1px solid var(--line);
    border-radius: .68rem;
    background: var(--surface-elevated);
    color: var(--text);
    caret-color: var(--accent-dark);
}

textarea:focus-visible,
input:not([type="radio"]):not([type="checkbox"]):not([type="file"]):focus-visible,
select:focus-visible {
    border-color: var(--focus);
    box-shadow: 0 0 0 3px rgba(94, 234, 212, .16);
}

textarea::placeholder,
input::placeholder {
    color: #9aa9bc;
    opacity: 1;
}

option {
    color: var(--ink);
    background: var(--surface-elevated);
}

textarea {
    min-height: 7rem;
    resize: vertical;
}

.secret-input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: .5rem;
}

.secret-toggle {
    min-width: 4.25rem;
}

.vault-controls,
.vault-danger,
.backup-panel,
.backup-import,
.backup-summary,
.vault-delete-confirmation {
    display: grid;
    gap: 1rem;
}

.vault-controls > *,
.vault-danger > *,
.vault-delete-confirmation > * {
    margin-block: 0;
}

.vault-field {
    max-width: 38rem;
}

.vault-check {
    display: flex;
    max-width: 48rem;
    align-items: flex-start;
    gap: .65rem;
}

.vault-check input {
    width: 1.15rem;
    height: 1.15rem;
    flex: 0 0 auto;
    margin-top: .25rem;
}

.vault-actions,
.backup-actions,
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
}

.backup-actions {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.backup-status,
.backup-summary,
.provider-manager {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: .75rem;
    background: var(--surface-muted);
}

.backup-summary dl {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    margin: 0;
}

.backup-summary dt {
    color: var(--muted);
    font-size: .76rem;
    font-weight: 700;
    text-transform: uppercase;
}

.backup-summary dd {
    margin: .15rem 0 0;
}

.provider-entry {
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--border);
}

.provider-manager,
.provider-delete,
.provider-manager [data-openai-replace] {
    margin-top: 1rem;
}

.home-hero {
    display: grid;
    min-height: min(36rem, 65vh);
    align-content: center;
    gap: 1rem;
    padding: clamp(1rem, 5vw, 4rem);
    border: 1px solid var(--border);
    border-radius: 1.4rem;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.home-hero h1 {
    max-width: 18ch;
}

.home-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.home-grid article {
    display: grid;
    gap: .55rem;
}

.feature-number {
    color: var(--accent);
    font-size: .78rem;
    font-weight: 800;
}

.privacy-card {
    border-color: #34595a;
    background: var(--surface-tint);
}

.privacy-card-heading {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
}

.privacy-card-heading .privacy-dot {
    margin-top: .42rem;
}

.privacy-card h2 {
    margin: 0;
    font-size: 1.08rem;
}

.privacy-card p,
.privacy-card ul {
    margin-bottom: 0;
}

.home-privacy {
    margin-top: 1rem;
}

.nav-backdrop {
    display: none;
}

@media (max-width: 64rem) {
    .app-frame {
        grid-template-columns: 7rem minmax(0, 1fr);
    }

    .app-sidebar {
        width: 7rem;
    }

    .app-sidebar .nav-label {
        display: none;
    }

    .app-sidebar .product-brand {
        display: none;
    }

    .sidebar-heading {
        min-width: 0;
        flex-direction: column;
    }

    .sidebar-nav,
    .sidebar-bottom {
        min-width: 0;
    }

    .sidebar-collapse {
        display: none;
    }
}

@media (max-width: 48rem) {
    .app-frame {
        display: block;
    }

    .app-sidebar {
        position: fixed;
        left: 0;
        width: min(18rem, calc(100vw - 3rem));
        box-shadow: var(--shadow-lg);
        transform: translateX(-105%);
        transition: transform .18s ease;
    }

    .app-sidebar .nav-label {
        display: inline;
    }

    .app-sidebar .product-brand {
        display: inline-flex;
    }

    .app-sidebar .sidebar-heading {
        min-width: 14rem;
        flex-direction: row;
    }

    .app-sidebar .sidebar-nav,
    .app-sidebar .sidebar-bottom {
        min-width: 14rem;
    }

    body[data-nav-open="true"] .app-sidebar {
        transform: translateX(0);
    }

    .nav-backdrop:not([hidden]) {
        position: fixed;
        inset: 0;
        z-index: 20;
        display: block;
        width: 100%;
        height: 100%;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: rgba(8, 17, 29, .72);
    }

    .mobile-header {
        position: sticky;
        top: 0;
        z-index: 18;
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: .75rem;
        min-height: 3.75rem;
        padding: .55rem 1rem;
        border-bottom: 1px solid var(--border);
        background: color-mix(in srgb, var(--surface) 94%, transparent);
        backdrop-filter: blur(12px);
    }

    .mobile-header .icon-button:hover {
        background: var(--surface-muted);
    }

    .mobile-brand-lockup {
        gap: .55rem;
    }

    .mobile-brand {
        color: var(--text);
    }

    .mobile-private {
        display: flex;
        align-items: center;
        gap: .45rem;
        color: var(--muted);
        font-size: .78rem;
        font-weight: 700;
    }

    .page-shell,
    .site-footer {
        width: min(100% - 1.25rem, 46rem);
    }

    .page-shell {
        padding-block: 1rem 1.75rem;
    }

    .home-hero {
        min-height: 27rem;
        padding: 1.4rem;
    }

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

    .hero-actions > *,
    .vault-actions > * {
        width: 100%;
    }
}

@media (max-width: 24rem) {
    .mobile-header {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .mobile-private {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}

/* Landing-only cutout hero; Prompt and Workflow execution panels are unchanged. */
.home-hero.workplace-visual-hero {
    grid-template-columns: minmax(0, 17fr) minmax(0, 8fr);
    align-items: center;
    min-height: 0;
    gap: 24px;
    padding: 32px;
}
.workplace-hero-copy { display: grid; gap: 1rem; min-width: 0; }
.workplace-hero-copy p { margin: 0; max-width: none; }
.home-hero .workplace-hero-copy h1 {
    max-width: none;
    font-size: clamp(2rem, 3vw, 2.6rem);
    line-height: 1.12;
}
.workplace-hero-image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    object-position: center;
    filter: drop-shadow(0 3px 10px rgb(148 163 184 / .10));
}
@media (max-width: 900px) {
    .home-hero.workplace-visual-hero { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .workplace-hero-image { width: min(100%, 360px); justify-self: center; }
}
@media (max-width: 600px) {
    .home-hero.workplace-visual-hero { padding: 1.4rem; }
    .workplace-hero-image { max-height: 200px; }
}