/* ------------------------------------------------------------------
   Skill Agent Registry — pilot (beta)
   Direction: Blueprint. Cool paper light theme by default, deep navy
   ink text, a single blue drafting accent, near-square 2px radii,
   Spline Sans Mono + Space Grotesk type, dotted ledger rules and a
   signature 3px accent rule on the install command and modals.
------------------------------------------------------------------- */

:root {
    --ink-0: #eef1f5;      /* page background */
    --ink-1: #ffffff;      /* raised surfaces */
    --ink-2: #e2e8ef;      /* hairline borders, rules */
    --ink-3: #ccd6e2;      /* strong borders / dotted rules */
    --paper: #1b2a3a;      /* primary text */
    --paper-dim: #62718a;  /* secondary text */
    --amber: #1d6fb8;      /* drafting accent (blue) */
    --amber-dim: #14568f;
    --good: #1a7a43;
    --bad: #c0392b;
    --scrim: rgba(20, 30, 45, 0.45);
    --wash-bad: rgba(192, 57, 43, 0.06);
    --mono: "Spline Sans Mono", ui-monospace, "Cascadia Mono", Menlo, monospace;
    --grotesk: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
    --font-scale: 1;
}

[data-theme="dark"] {
    --ink-0: #0e1622;
    --ink-1: #16202e;
    --ink-2: #243446;
    --ink-3: #30435a;
    --paper: #dce6f0;
    --paper-dim: #8597ac;
    --amber: #5aa9ec;
    --amber-dim: #3d86c8;
    --good: #5fb87a;
    --bad: #e0796b;
    --scrim: rgba(0, 0, 0, 0.6);
    --wash-bad: rgba(224, 121, 107, 0.08);
}

* { box-sizing: border-box; }

html {
    font-size: calc(16px * var(--font-scale));
}

html, body {
    margin: 0;
    background: var(--ink-0);
    color: var(--paper);
    font-family: var(--mono);
    line-height: 1.55;
}

html { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }

* { transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease; }

a { color: var(--amber); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
    outline: 2px solid var(--amber);
    outline-offset: 2px;
}

h1, h2, h3 {
    font-family: var(--grotesk);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 0.5rem;
}

h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.12; }
h2 { font-size: 1.1rem; }

code { font-family: var(--mono); }

/* ---------------------------------------------------------- shell */

.shell {
    width: 80%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 0.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.masthead {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--ink-2);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--paper);
    font-weight: 600;
    letter-spacing: 0.08em;
}
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--amber); font-size: 1.2rem; }
.brand-dot { color: var(--amber); }
.brand-version { font-size: 0.65rem; font-weight: 400; letter-spacing: 0.04em; color: var(--paper-dim); }
.brand-beta {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--amber);
    border: 1px solid var(--amber);
    border-radius: 999px;
    padding: 0.05rem 0.4rem;
}

.masthead-nav {
    display: flex;
    gap: 1.1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}
/* Hairline between nav groups (browse / tools · publish · governance / account). */
.nav-sep {
    width: 1px;
    height: 1.1rem;
    background: var(--ink-3);
}
.masthead-nav a {
    color: var(--paper-dim);
    text-transform: lowercase;
    letter-spacing: 0.04em;
}
.masthead-nav a:hover { color: var(--paper); text-decoration: none; }
.masthead-nav a.active { color: var(--amber); }

/* Auth controls (E1) */
.nav-user {
    color: var(--paper-dim);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-decoration: none;
}
.nav-user:hover { color: var(--paper); }
.avatar-preview {
    display: block;
    width: 96px;
    height: 96px;
    object-fit: cover;
    border-radius: 50%;
    border: 1px solid var(--rule);
    margin-bottom: 0.5rem;
}
.masthead-nav a.nav-auth { font-size: 0.85rem; }
.nav-auth-form { display: inline; margin: 0; }

/* Account menu: avatar trigger + profile/sign-out submenu. Same <details> mechanics as
   .nav-publish below, but right-aligned since it sits at the end of the masthead. */
.nav-account { position: relative; list-style: none; }
.nav-account > summary {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--paper-dim);
    font-size: 0.85rem;
    text-transform: lowercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.nav-account > summary::-webkit-details-marker { display: none; }
.nav-account > summary::after { content: "▾"; font-size: 0.7em; }
.nav-account > summary:hover { color: var(--paper); }
.nav-account[open] > summary { color: var(--amber); }
.nav-avatar {
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--ink-3);
    display: block;
    flex-shrink: 0;
}
.nav-avatar-fallback {
    display: grid;
    place-items: center;
    background: var(--ink-2);
    color: var(--paper-dim);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0;
}
.nav-account[open] .nav-avatar,
.nav-account > summary:hover .nav-avatar { border-color: var(--amber-dim); }
.nav-account:not([open]) .nav-account-menu { display: none; }
.nav-account-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--ink-1);
    border: 1px solid var(--ink-2);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    min-width: 12rem;
    z-index: 200;
    overflow: hidden;
}
.nav-account-head {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--ink-2);
}
.nav-account-head-name { color: var(--paper); font-size: 0.85rem; }
.nav-account-head-email {
    color: var(--paper-dim);
    font-size: 0.72rem;
    word-break: break-all;
}
.nav-account-badge {
    align-self: flex-start;
    margin-top: 0.15rem;
    padding: 0.05rem 0.4rem;
    border: 1px solid var(--amber-dim);
    border-radius: 2px;
    color: var(--amber);
    font-size: 0.65rem;
    text-transform: lowercase;
    letter-spacing: 0.06em;
}
.nav-account-menu a,
.nav-account-signout {
    display: block;
    width: 100%;
    padding: 0.55rem 1rem;
    background: none;
    border: 0;
    color: var(--paper-dim);
    font: inherit;
    font-size: 0.85rem;
    text-align: left;
    text-transform: lowercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    cursor: pointer;
}
.nav-account-menu a:hover,
.nav-account-signout:hover {
    background: var(--ink-2);
    color: var(--paper);
    text-decoration: none;
}
/* Display settings row inside the menu (signed in); the same controls sit inline in the
   masthead when signed out. */
.nav-account-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--ink-2);
    border-bottom: 1px solid var(--ink-2);
}
.nav-account-section {
    color: var(--paper-dim);
    font-size: 0.7rem;
    text-transform: lowercase;
    letter-spacing: 0.06em;
}
.display-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-publish { position: relative; list-style: none; }
.nav-publish > summary {
    color: var(--paper-dim);
    text-transform: lowercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.nav-publish > summary::-webkit-details-marker { display: none; }
.nav-publish > summary::after { content: " ▾"; font-size: 0.7em; }
.nav-publish > summary:hover { color: var(--paper); }
.nav-publish[open] > summary { color: var(--amber); }
.nav-publish:not([open]) .nav-publish-menu { display: none; }
.nav-publish-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink-1);
    border: 1px solid var(--ink-2);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    min-width: 9rem;
    z-index: 200;
    overflow: hidden;
}
.nav-publish-menu a {
    display: block;
    padding: 0.55rem 1rem;
    color: var(--paper-dim);
    text-transform: lowercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.nav-publish-menu a:hover {
    background: var(--ink-2);
    color: var(--paper);
    text-decoration: none;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--ink-3);
    color: var(--paper-dim);
    width: 1.9rem;
    height: 1.9rem;
    line-height: 1;
    display: grid;
    place-items: center;
    cursor: pointer;
    border-radius: 2px;
    font-size: 0.95rem;
}
.theme-toggle:hover { color: var(--amber); border-color: var(--amber-dim); }

.font-size-controls {
    display: flex;
    gap: 0.3rem;
}
.font-size-btn {
    background: none;
    border: 1px solid var(--ink-3);
    color: var(--paper-dim);
    min-width: 1.9rem;
    height: 1.9rem;
    line-height: 1;
    display: grid;
    place-items: center;
    cursor: pointer;
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0 0.3rem;
}
.font-size-btn:hover { color: var(--amber); border-color: var(--amber-dim); }
.theme-toggle-icon-light { display: none; }
[data-theme="dark"] .theme-toggle-icon-dark { display: none; }
[data-theme="dark"] .theme-toggle-icon-light { display: inline; }

.content { flex: 1; padding: 1.2rem 0 1.8rem; }

.footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    border-top: 1px solid var(--ink-2);
    padding: 0.8rem 0 1rem;
    color: var(--paper-dim);
    font-size: 0.8rem;
}
.footer code { color: var(--amber-dim); }

/* ---------------------------------------------------------- hero */

.eyebrow {
    color: var(--amber);
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.72rem;
    margin: 0 0 0.6rem;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: end;
    padding-bottom: 1.2rem;
    border-bottom: 1px dashed var(--ink-3);
    margin-bottom: 1.2rem;
}

.hero-sub {
    color: var(--paper-dim);
    max-width: 56ch;
    margin: 0.3rem 0 0.9rem;
}

.hero-stats {
    display: grid;
    gap: 0.6rem;
    justify-items: end;
    text-align: right;
}
.stat { display: grid; }
.stat-num {
    font-family: var(--grotesk);
    font-size: 2rem;
    font-weight: 700;
    color: var(--paper);
}
.stat-label {
    color: var(--paper-dim);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.stat-warn .stat-num { color: var(--amber); }

/* -------------------------------------------------- command (signature) */

.cmd {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--ink-1);
    border: 1px solid var(--ink-3);
    border-left: 3px solid var(--amber);
    border-radius: 2px;
    padding: 0.7rem 0.9rem;
    overflow-x: auto;
}
.cmd-prompt { color: var(--amber); user-select: none; }
.cmd-text { white-space: nowrap; color: var(--paper); font-size: 0.85rem; }
.cmd-text .cc-cursor {
    color: var(--amber);
    margin-left: 2px;
    animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
    .cmd-text .cc-cursor { animation: none; }
}
.cmd-copy {
    margin-left: auto;
    background: none;
    border: 1px solid var(--ink-3);
    color: var(--paper-dim);
    font-family: var(--mono);
    font-size: 0.72rem;
    padding: 0.2rem 0.55rem;
    border-radius: 2px;
    cursor: pointer;
}
.cmd-copy:hover { color: var(--amber); border-color: var(--amber-dim); }
.cmd-compact { padding: 0.45rem 0.7rem; }
.cmd-compact .cmd-text { font-size: 0.78rem; }

/* ---------------------------------------------------------- board */

.board-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.6rem;
}
.board-title {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.85rem;
    font-family: var(--mono);
    font-weight: 600;
    color: var(--paper-dim);
}
.toggle {
    color: var(--paper-dim);
    font-size: 0.8rem;
    display: flex;
    gap: 0.4rem;
    align-items: center;
    cursor: pointer;
}
.toggle input { accent-color: var(--amber); }

.search {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border: 1px solid var(--ink-3);
    background: var(--ink-1);
    border-radius: 2px;
    padding: 0.45rem 0.8rem;
    margin-bottom: 0.8rem;
}
.search-icon { color: var(--amber); }
.search-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--paper);
    font-family: var(--mono);
    font-size: 0.9rem;
}
.search-input:focus { outline: none; }
.search-input::placeholder { color: var(--paper-dim); }

/* -------------------------------------------------------- ledger table */

.ledger {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
}
.ledger th {
    text-align: left;
    color: var(--paper-dim);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.68rem;
    border-bottom: 1px solid var(--ink-3);
    padding: 0.5rem 0.6rem;
}
.ledger td {
    padding: 0.5rem 0.6rem;
    border-bottom: 1px dotted var(--ink-3);  /* the ledger rule */
    vertical-align: top;
}
.ledger-row { cursor: pointer; }
.ledger-row:hover td { background: var(--ink-1); }
.row-link {
    display: block;
    color: inherit;
    text-decoration: none;
    margin: -0.5rem -0.6rem;
    padding: 0.5rem 0.6rem;
}

.col-rank { width: 2.5rem; color: var(--paper-dim); }
.col-num { text-align: right; width: 6rem; font-variant-numeric: tabular-nums; }
.col-ver { width: 6rem; }
.col-tags { width: 14rem; }
.col-actions { text-align: right; white-space: nowrap; width: 1%; }

.cell-skill { display: flex; gap: 0.6rem; align-items: baseline; flex-wrap: wrap; }
.skill-name { color: var(--amber); font-weight: 600; }
.skill-owner { color: var(--paper-dim); font-size: 0.75rem; }
.skill-desc { color: var(--paper-dim); font-size: 0.78rem; margin-top: 0.15rem; max-width: 62ch; }
.installs { color: var(--paper); font-weight: 600; }

.tag {
    display: inline-block;
    border: 1px solid var(--ink-3);
    color: var(--paper-dim);
    font-size: 0.68rem;
    padding: 0.05rem 0.45rem;
    margin: 0 0.3rem 0.3rem 0;
    border-radius: 2px;
}

.row-deprecated td { opacity: 0.55; }

.ver { color: var(--paper); font-size: 0.82rem; }
.hash { color: var(--paper-dim); }

.empty {
    border: 1px dashed var(--ink-3);
    border-radius: 2px;
    padding: 2rem;
    text-align: center;
    color: var(--paper-dim);
}

.muted { color: var(--paper-dim); }
.muted-sm { color: var(--paper-dim); font-size: 0.74rem; }

/* ---------------------------------------------------------- badges */

.badge {
    display: inline-block;
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.1rem 0.5rem;
    border-radius: 2px;
    border: 1px solid;
}
.badge-pending { color: var(--amber); border-color: var(--amber-dim); }
.badge-approved { color: var(--good); border-color: var(--good); }
.badge-rejected { color: var(--bad); border-color: var(--bad); }
.badge-deprecated { color: var(--paper-dim); border-color: var(--ink-3); }

/* ---------------------------------------------------------- buttons */

.btn {
    background: var(--ink-1);
    border: 1px solid var(--ink-3);
    color: var(--paper);
    font-family: var(--mono);
    font-size: 0.78rem;
    padding: 0.35rem 0.8rem;
    border-radius: 2px;
    cursor: pointer;
}
.btn:hover { border-color: var(--amber-dim); color: var(--amber-dim); text-decoration: none; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sm { font-size: 0.7rem; padding: 0.2rem 0.55rem; margin-left: 0.3rem; }
.btn-wide { width: 100%; padding: 0.6rem; }
.btn-primary { border-color: var(--amber); color: var(--amber); }
.btn-primary:hover { background: var(--amber); border-color: var(--amber); color: var(--ink-1); }
.btn-good:hover { border-color: var(--good); color: var(--good); }
.btn-bad:hover { border-color: var(--bad); color: var(--bad); }

/* ---------------------------------------------------------- detail */

.banner {
    padding: 0.7rem 1rem;
    margin-bottom: 1.4rem;
    border: 1px solid;
    border-radius: 2px;
    font-size: 0.85rem;
}
.banner-deprecated { border-color: var(--bad); color: var(--bad); background: var(--wash-bad); }

.detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 2.5rem;
}

.detail-title { color: var(--amber); }
.detail-tags { margin: 0.2rem 0 0.8rem; }
.detail-desc { color: var(--paper); max-width: 68ch; }

.section-title {
    margin-top: 2.2rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.8rem;
    font-family: var(--mono);
    font-weight: 600;
    color: var(--paper-dim);
    border-bottom: 1px solid var(--ink-2);
    padding-bottom: 0.4rem;
}

.install-alt { color: var(--paper-dim); font-size: 0.78rem; margin: 0.8rem 0 0.3rem; }
.install-note { color: var(--paper-dim); font-size: 0.8rem; margin-top: 0.6rem; }

.changelog { color: var(--paper-dim); font-size: 0.76rem; margin-top: 0.2rem; max-width: 40ch; }
.review-notes { color: var(--amber-dim); font-size: 0.74rem; margin-top: 0.2rem; }

.detail-side { display: grid; gap: 1.2rem; align-content: start; }
.side-block {
    border-left: 2px solid var(--ink-3);
    padding-left: 0.9rem;
    display: grid;
    gap: 0.25rem;
}
.side-label {
    color: var(--paper-dim);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}
.side-big { font-family: var(--grotesk); font-size: 1.8rem; font-weight: 700; }
.weight-edit { display: flex; gap: 0.4rem; }

/* ---------------------------------------------------------- audit */

.audit-list { list-style: none; margin: 0; padding: 0; }
.audit-list li {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    align-items: baseline;
    padding: 0.5rem 0;
    border-bottom: 1px dotted var(--ink-3);
    font-size: 0.8rem;
}
.audit-time { color: var(--paper-dim); font-size: 0.74rem; white-space: nowrap; }
.audit-actor { color: var(--paper); }
.audit-details { color: var(--paper-dim); flex: 1; min-width: 12rem; }

.audit-action { color: var(--amber); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; }
.audit-versionapproved, .audit-versionrestored, .audit-skillrestored { color: var(--good); }
.audit-versionrejected, .audit-versiondeprecated, .audit-skilldeprecated { color: var(--bad); }
.audit-downloaded { color: var(--paper-dim); }

/* ---------------------------------------------------------- forms */

.field { display: grid; gap: 0.3rem; margin-bottom: 1rem; }
.field > span {
    color: var(--paper-dim);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.input {
    background: var(--ink-1);
    border: 1px solid var(--ink-3);
    color: var(--paper);
    font-family: var(--mono);
    font-size: 0.88rem;
    padding: 0.55rem 0.7rem;
    border-radius: 2px;
    width: 100%;
}
.input:focus { outline: none; border-color: var(--amber-dim); }
.input-sm { padding: 0.3rem 0.5rem; width: 5.5rem; }
.input-file { padding: 0.45rem; }
textarea.input { resize: vertical; }

.form-error { color: var(--bad); font-size: 0.84rem; }
.manifest-note { color: var(--good); font-size: 0.8rem; }

/* ---------------------------------------------------------- upload page */

.upload-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 2.5rem;
    margin-top: 1.4rem;
}
.upload-help h3 {
    font-family: var(--mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--paper-dim);
    margin-top: 1.6rem;
}
.upload-help h3:first-child { margin-top: 0; }
.upload-help p { color: var(--paper-dim); font-size: 0.82rem; }
.tree {
    background: var(--ink-1);
    border: 1px solid var(--ink-2);
    border-radius: 2px;
    padding: 0.8rem 1rem;
    font-size: 0.78rem;
    color: var(--paper-dim);
    overflow-x: auto;
}
.rules { color: var(--paper-dim); font-size: 0.82rem; padding-left: 1.1rem; }
.rules li { margin-bottom: 0.45rem; }

/* ---------------------------------------------------------- modal */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--scrim);
    display: grid;
    place-items: center;
    z-index: 50;
}
.modal {
    background: var(--ink-1);
    border: 1px solid var(--ink-3);
    border-top: 3px solid var(--amber);
    border-radius: 2px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
    padding: 1.5rem;
    width: min(440px, 92vw);
}
.modal-actions { display: flex; justify-content: flex-end; gap: 0.6rem; margin-top: 0.6rem; }

/* ---------------------------------------------------------- responsive */

@media (max-width: 860px) {
    .hero { grid-template-columns: 1fr; }
    .hero-stats { grid-auto-flow: column; justify-items: start; text-align: left; justify-content: start; gap: 2rem; }
    .detail { grid-template-columns: 1fr; }
    .detail-side { grid-auto-flow: row; }
    .upload-grid { grid-template-columns: 1fr; }
    .col-tags, .skill-owner { display: none; }
    .field-row { grid-template-columns: 1fr; }
    .masthead { flex-direction: column; align-items: flex-start; }
}