/* ====================================================================
   base.css — shared tokens, app shell, side-nav, accordion and the
   auth-gate. Modules still style their own internals via their
   index.css; this file owns only what is genuinely app-wide.
   ==================================================================== */

:root {
    --primary: #0066cc;
    --danger: #cc3333;
    --surface: #ffffff;
    --text: #1a1a1a;
    --muted: #666666;
    --border: #dddddd;
    --panel-head: #f4f4f5;
    --overlay-bg: rgba(0, 0, 0, 0.85);
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 1rem 1.5rem;
    color: var(--text);
    background: var(--surface);
    box-sizing: border-box;
}

.hidden {
    display: none !important;
}

/* --------------------------------------------------------------------
   Auth gate — main.js toggles body.app--logged-in / .app--logged-out.
   Logged out: nothing but the (centered) login form.
   Logged in : the login form is gone; app containers appear.
   -------------------------------------------------------------------- */

body.app--logged-out {
    display: grid;
    place-items: center;
    min-height: 100vh;
}

body.app--logged-in > app-module[src="/modules/login"] {
    display: none;
}

/* containers that only exist once logged in */
.app-authed {
    display: none;
}

body.app--logged-in .app-authed {
    display: block;
}

/* the standard shell: side-nav | main view */
.app-shell {
    display: none;
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

body.app--logged-in .app-shell {
    display: grid;
}

/* --------------------------------------------------------------------
   Side navigation
   -------------------------------------------------------------------- */

.app-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    border-right: 1px solid var(--border);
    padding-right: 1rem;
    min-height: 80vh;
}

/* Top row: hamburger toggle + brand (brand label hides when collapsed). */
.app-nav__top {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    min-height: 2rem;
}

.app-nav__brand {
    font-weight: 700;
    font-size: 1.1rem;
}

.app-nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 2rem;
    height: 2rem;
    padding: 0;
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text);
}

.app-nav__toggle:hover {
    background: rgba(0, 102, 204, 0.08);
}

.app-nav__toggle svg line {
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
}

.app-nav a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    color: var(--text);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
}

/* Icons follow the row's text colour (currentColor) → white on the active row. */
.app-nav__icon {
    display: inline-flex;
    flex: 0 0 auto;
    width: 20px;
    justify-content: center;
}

.app-nav__icon svg {
    display: block;
}

.app-nav a:hover {
    background: rgba(0, 102, 204, 0.08);
}

.app-nav a.is-active {
    background: var(--primary);
    color: #fff;
}

.app-nav__spacer {
    flex: 1;
}

.app-nav__logout {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
    background: var(--danger);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
}

/* --------------------------------------------------------------------
   Collapsed sidebar — body.nav-collapsed is toggled + persisted by
   app-nav. Narrow the shell column and hide labels → icon-only nav.
   -------------------------------------------------------------------- */

body.nav-collapsed .app-shell {
    grid-template-columns: 3.5rem minmax(0, 1fr);
}

body.nav-collapsed .app-nav__label {
    display: none;
}

body.nav-collapsed .app-nav {
    align-items: center;
    padding-right: 0.4rem;
}

body.nav-collapsed .app-nav__top {
    justify-content: center;
}

body.nav-collapsed .app-nav a,
body.nav-collapsed .app-nav__logout {
    justify-content: center;
    gap: 0;
    padding: 0.5rem;
}

/* --------------------------------------------------------------------
   Accordion panels (native <details>) — Categorize / Booker / Validator
   and the Viewer on the workspace.
   -------------------------------------------------------------------- */

.panel {
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.panel > summary {
    list-style: none;
    cursor: pointer;
    padding: 0.5rem 0.9rem;
    font-weight: 600;
    background: var(--panel-head);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel > summary::-webkit-details-marker {
    display: none;
}

.panel > summary::after {
    content: '+';
    font-weight: 700;
    color: var(--muted);
}

.panel[open] > summary::after {
    content: '\2212'; /* minus */
}

.panel__body {
    padding: 0.9rem;
}

.panel__todo {
    color: var(--muted);
    font-style: italic;
    padding: 0.9rem;
    margin: 0;
}

.app-main__header {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.app-main__header h1 {
    font-size: 1.25rem;
    margin: 0;
}