:root {
    /* One stacking ladder for every overlay, lowest first. Anything opened
       from full canvas or the Details overlay sits above both (UI-02,
       STYLE-01); confirmations and select menus stay on top. */
    --z-full-canvas: 9999;
    --z-details: 11020;
    --z-modal: 11600;
    --z-screen-help: 11700;
    --z-toast: 11800;
    --z-dialog: 12000;
    --z-select-menu: 12050;
    /* Width cap for signed-in pages (UI-09). */
    --app-shell-max: 1720px;
    /* Shared aliases used by the editor toolbar, inline code, and secondary
       text. They follow the theme because they point at theme tokens (UI-10). */
    --surface-2: var(--card-soft);
    --surface-3: var(--bg-2);
    --text-soft: var(--muted);
    --bg-soft: var(--bg-2);
    --surface: var(--card);
    --surface-solid: var(--card);
    --surface-raised: var(--card-soft);
    --panel: var(--card);
    --danger: var(--red);
    --weight-normal: var(--weight-regular, 400);
    --bg: #f5f7f2;    --bg-2: #eef3ef;
    --card: #ffffff;
    --card-rgb: 255, 255, 255;
    --card-soft: #f9faf8;
    --card-soft-rgb: 249, 250, 248;
    --text: #1f2933;
    --muted: #667085;
    --line: #d8e0df;
    --line-strong: #9fb2b1;
    --accent: #0f766e;
    --accent-rgb: 15, 118, 110;
    --accent-solid: #0f766e;
    --accent-hover: #0b5f59;
    --accent-on-solid: #ffffff;
    --accent-soft: #e4f4f1;
    --red: #d9534f;
    /* Error and destructive text: at least 4.5:1 on cards in each theme (UI-20). */
    --error-text: #b42318;
    /* Unchecked checkbox and similar control outlines: at least 3:1 (STYLE-08). */
    --control-border: #7f8f8e;
    --red-soft: #fff1f1;
    --blue: #2563eb;
    --blue-soft: #eef4ff;
    --green: #16a34a;
    --green-soft: #eefaf2;
    --amber: #d97706;
    --amber-soft: #fff8e5;
    --input-bg: #ffffff;
    --surface-hover: #fbfffe;
    --overlay: rgba(31, 41, 51, .34);
    --accent-glow: rgba(var(--accent-rgb), .10);
    --blue-glow: rgba(37, 99, 235, .07);
    --shadow: 0 16px 42px rgba(31, 41, 51, .08);
    --shadow-soft: 0 8px 24px rgba(31, 41, 51, .06);
    --radius: 18px;
    --detail-radius: 14px;
    --detail-gap: 10px;
    --detail-padding: 14px;
    --detail-surface: var(--card-soft);
    --detail-surface-open: var(--card);
}

html[data-theme="dark"] {
    --bg: #0d1418;
    --bg-2: #121c21;
    --card: #182229;
    --card-rgb: 24, 34, 41;
    --card-soft: #202c33;
    --card-soft-rgb: 32, 44, 51;
    --text: #edf3f4;
    --muted: #a8b6bb;
    --line: #34464d;
    --line-strong: #60777a;
    --accent: #55c7bd;
    --accent-rgb: 85, 199, 189;
    --accent-solid: #247f78;
    --accent-hover: #2d9188;
    --accent-on-solid: #ffffff;
    --accent-soft: #153b39;
    --red: #ef7470;
    --error-text: #f08a86;
    --control-border: #b9c7c6;
    --red-soft: #3b2023;
    --blue: #72a7ff;
    --blue-soft: #1b2d4a;
    --green: #55cb7e;
    --green-soft: #183827;
    --amber: #f0ad4e;
    --amber-soft: #3c301b;
    --input-bg: #111b20;
    --surface-hover: #223139;
    --overlay: rgba(2, 8, 12, .72);
    --accent-glow: rgba(var(--accent-rgb), .12);
    --blue-glow: rgba(114, 167, 255, .08);
    --shadow: 0 18px 48px rgba(0, 0, 0, .34);
    --shadow-soft: 0 10px 28px rgba(0, 0, 0, .24);
}

html[data-accent="red"] {
    --accent: #b83242;
    --accent-rgb: 184, 50, 66;
    --accent-solid: #b83242;
    --accent-hover: #962736;
    --accent-soft: #fbeaec;
}
html[data-theme="dark"][data-accent="red"] {
    --accent: #ff8994;
    --accent-rgb: 255, 137, 148;
    --accent-solid: #b94350;
    --accent-hover: #ce5360;
    --accent-soft: #442329;
}
html[data-accent="blue"] {
    --accent: #2563eb;
    --accent-rgb: 37, 99, 235;
    --accent-solid: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: #eaf1ff;
}
html[data-theme="dark"][data-accent="blue"] {
    --accent: #82b1ff;
    --accent-rgb: 130, 177, 255;
    --accent-solid: #376fca;
    --accent-hover: #4a82dc;
    --accent-soft: #1b2d4a;
}
html[data-accent="gold"] {
    --accent: #a85d00;
    --accent-rgb: 168, 93, 0;
    --accent-solid: #a85d00;
    --accent-hover: #894c00;
    --accent-soft: #fff4df;
}
html[data-theme="dark"][data-accent="gold"] {
    --accent: #ffc266;
    --accent-rgb: 255, 194, 102;
    --accent-solid: #9b5e12;
    --accent-hover: #b57020;
    --accent-soft: #40301a;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-height: 100%; }
body {
    margin: 0;
    transition: background-color .18s ease, color .18s ease;
    min-height: 100vh;
    font-family: var(--font-sans);
    color: var(--text);
    background:
        radial-gradient(circle at 10% -10%, var(--accent-glow), transparent 34%),
        radial-gradient(circle at 100% 0%, var(--blue-glow), transparent 30%),
        var(--bg);
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }

.app-shell { width: min(100% - 28px, var(--app-shell-max)); margin: 0 auto; padding: 22px 0 42px; }
.eyebrow { margin: 0 0 6px; text-transform: uppercase; letter-spacing: var(--tracking-label); font-size: var(--type-xs); font-weight: var(--weight-bold); color: var(--accent); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(28px, 5vw, 42px); letter-spacing: var(--tracking-display); }
h2 { letter-spacing: var(--tracking-heading); }
h3 { letter-spacing: var(--tracking-subheading); }

.hero-panel, .panel, .map-panel, .drawer, .setup-card, .modal-card {
    background: rgba(var(--card-rgb),.86);
    border: 1px solid rgba(159,178,177,.38);
    box-shadow: var(--shadow);
}
.hero-panel { border-radius: 24px; padding: 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.hero-panel h2 { margin: 8px 0 8px; font-size: clamp(25px, 4vw, 40px); }
.hero-panel p { color: var(--muted); line-height: 1.6; max-width: 860px; margin-bottom: 0; }
.pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 10px; background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(var(--accent-rgb),.18); font-size: 12px; font-weight: 700; }

.layout { display: grid; gap: 18px; align-items: start; }
.sidebar { display: grid; gap: 14px; position: sticky; top: 14px; }
.panel { border-radius: var(--radius); padding: 16px; }
.panel h2 { font-size: 16px; margin: 0 0 12px; }
.quiet { color: var(--muted); font-size: 13px; }

.input-label, .drawer-form label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; margin-bottom: 12px; }

/*
 * Shared form-control baseline for the signed-in app and Admin.
 * Feature styles may adjust layout or size, but standard controls should not
 * recreate their own color, border, focus, placeholder, or disabled states.
 */
:where(
    input:not([type]),
    input[type="text"],
    input[type="password"],
    input[type="search"],
    input[type="email"],
    input[type="url"],
    input[type="tel"],
    input[type="number"],
    input[type="date"],
    input[type="datetime-local"],
    input[type="time"],
    input[type="month"],
    input[type="week"],
    select,
    textarea
) {
    width: 100%;
    min-width: 0;
    background: var(--input-bg);
    border: 1px solid var(--line);
    color: var(--text);
    border-radius: 12px;
    padding: 11px 12px;
    outline: none;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .02);
    transition: background-color .16s ease, border-color .16s ease, box-shadow .16s ease;
}
:where(
    input:not([type]),
    input[type="text"],
    input[type="password"],
    input[type="search"],
    input[type="email"],
    input[type="url"],
    input[type="tel"],
    input[type="number"],
    input[type="date"],
    input[type="datetime-local"],
    input[type="time"],
    input[type="month"],
    input[type="week"],
    select
) {
    min-height: 44px;
}
select {
    appearance: none;
    -webkit-appearance: none;
    min-height: 44px;
    padding-right: 36px;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--text) 50%),
        linear-gradient(135deg, var(--text) 50%, transparent 50%);
    background-position:
        calc(100% - 18px) 50%,
        calc(100% - 12px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}
select option { background: var(--input-bg); color: var(--text); }
input[type="date"], input[type="datetime-local"], input[type="time"], input[type="month"], input[type="week"] { color-scheme: inherit; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .78; }
input[type="file"] {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    background: var(--card-soft);
    border: 1px dashed var(--line-strong);
    border-radius: 12px;
    padding: 8px;
    color: var(--muted);
}
input[type="file"]::file-selector-button {
    margin-right: 10px;
    border: 1px solid var(--line);
    border-radius: 9px;
    padding: 7px 10px;
    background: var(--card);
    color: var(--text);
    font-weight: 700;
    cursor: pointer;
}
input[type="file"]:hover::file-selector-button { border-color: rgba(var(--accent-rgb),.45); background: var(--surface-hover); }
:where(input, select, textarea):focus { border-color: rgba(var(--accent-rgb),.55); box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.08); }
:where(input, select, textarea):disabled { cursor: not-allowed; opacity: .62; }
/* A disabled action must not look clickable. Zero specificity keeps every
   component-specific disabled style authoritative. */
:where(button, .primary-button, .ghost-button, .button-link):disabled { cursor: not-allowed; opacity: .55; }
:where(input, textarea)[readonly] { background: var(--card-soft); color: var(--muted); }
textarea { resize: vertical; }
.checkbox-row { display: flex !important; gap: 10px; align-items: center; color: var(--muted); }

.map-panel { border-radius: var(--radius); padding: 18px; min-width: 0; background: rgba(var(--card-rgb),.9); }
.map-toolbar { display: grid; grid-template-columns: 1fr; align-items: start; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.map-toolbar > div:first-child { min-width: 0; }
.map-toolbar h2 { margin-bottom: 4px; }
.map-toolbar p { margin: 0; color: var(--muted); font-size: 13px; min-height: 34px; max-width: 520px; }
.tree-root { overflow-x: auto; padding: 6px 6px 40px; min-height: 560px; }
.tree-root.loading { color: var(--muted); }
.tree { min-width: 680px; }
.tree ul { list-style: none; margin: 0; padding-left: 34px; position: relative; }
.tree ul::before { content: ""; position: absolute; top: 0; bottom: 12px; left: 13px; width: 2px; background: var(--line-strong); opacity: .55; border-radius: 999px; }
.tree > ul { padding-left: 0; }
.tree > ul::before { display: none; }
.tree li { position: relative; margin: 12px 0; }
.tree li::before { content: ""; position: absolute; top: 26px; left: -21px; width: 21px; height: 2px; background: var(--line-strong); opacity: .65; border-radius: 999px; }
.tree > ul > li::before { display: none; }
.tree li.active-path::before, .tree ul.active-path-line::before { background: var(--accent); opacity: 1; }
.children.collapsed { display: none; }
.loose-branches {
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px dashed var(--line-strong);
}
.loose-branches-heading {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin: 0 0 8px;
    color: var(--muted);
}
.loose-branches-heading span {
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: var(--tracking-label);
    text-transform: uppercase;
}
.loose-branches-heading small { font-size: 12px; }
.loose-branches > ul { padding-left: 0; }
.loose-branches > ul::before,
.loose-branches > ul > li::before { display: none; }

.node-card {
    width: min(100%, 760px);
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    align-items: start;
    border: 1px solid var(--line);
    border-left: 6px solid var(--red);
    border-radius: 15px;
    background: var(--card);
    padding: 12px;
    transition: border-color .12s ease, box-shadow .12s ease;
}
.node-card:hover { border-color: rgba(var(--accent-rgb),.32); box-shadow: 0 8px 22px rgba(31,41,51,.07); }
.node-card.highlighted { outline: 3px solid rgba(var(--accent-rgb),.18); border-color: rgba(var(--accent-rgb),.55); }
.node-card.active-path-card { box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.10); }
.node-card.related-highlight { box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.node-card.status-learning { border-left-color: var(--blue); background: linear-gradient(90deg, var(--blue-soft), var(--card) 22%); }
.node-card.status-learned { border-left-color: var(--green); background: linear-gradient(90deg, var(--green-soft), var(--card) 22%); }
.node-card.status-todo { border-left-color: var(--red); background: linear-gradient(90deg, var(--red-soft), var(--card) 22%); }
.node-card.status-structural { border-left-color: var(--line-strong); background: var(--card); }
.toggle-button { width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--line); color: var(--text); background: var(--card); display: grid; place-items: center; flex: 0 0 auto; }
.toggle-button.no-children { opacity: .35; pointer-events: none; }
.node-main { min-width: 0; }
.node-open-button { width: 100%; margin: 0; padding: 0; border: 0; border-radius: 8px; color: inherit; background: transparent; text-align: left; }
.node-open-button:hover .node-title { color: var(--accent); }
.node-card.has-children { cursor: pointer; }
.node-title-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.node-title { font-weight: var(--weight-bold); letter-spacing: var(--tracking-subheading); }
.node-description { display: block; color: var(--muted); margin-top: 5px; font-size: 13px; line-height: 1.45; max-width: 630px; }
.badge { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); background: rgba(var(--card-rgb),.78); border-radius: 999px; padding: 4px 8px; color: var(--muted); font-size: 12px; font-weight: 600; }
.badge.focus { color: #8a5a00; border-color: rgba(245,158,11,.35); background: #fff8e5; }
.badge.count { background: var(--accent-soft); color: var(--accent); border-color: rgba(var(--accent-rgb),.18); }
.node-side { display: grid; gap: 8px; justify-items: end; min-width: 118px; }
.quick-status { display: flex; gap: 5px; }
.status-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--red); border: 2px solid rgba(var(--card-rgb),.9); box-shadow: 0 0 0 1px rgba(0,0,0,.06); }
.status-dot.learning { background: var(--blue); }
.status-dot.learned { background: var(--green); }
.status-dot.structural { background: var(--line-strong); }
.status-dot-button { min-width: 36px; min-height: 36px; border: 1px solid var(--line); background: var(--card); padding: 5px; border-radius: 10px; display: grid; place-items: center; color: var(--muted); }
.status-dot-button:hover { border-color: var(--line-strong); background: var(--card-soft); color: var(--text); }
.status-dot-button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), .16); }
.status-choice-symbol { font-size: 18px; font-weight: 800; line-height: 1; }
.status-choice-todo .status-choice-symbol { color: var(--red); }
.status-choice-learning .status-choice-symbol { color: var(--blue); }
.status-choice-learned .status-choice-symbol { color: var(--green); }
.compact-status-label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-height: 28px;
    padding: 4px 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--card-soft);
    color: var(--muted);
    font-size: 11px;
    font-weight: 800;
    white-space: nowrap;
}
.status-label-todo { border-color: color-mix(in srgb, var(--red) 34%, var(--line)); color: var(--red); background: var(--red-soft); }
.status-label-learning { border-color: color-mix(in srgb, var(--blue) 34%, var(--line)); color: var(--blue); background: var(--blue-soft); }
.status-label-learned { border-color: color-mix(in srgb, var(--green) 34%, var(--line)); color: var(--green); background: var(--green-soft); }

.primary-button, .ghost-button, .button-link, .status-choice, .icon-button {
    border: 1px solid var(--line);
    color: var(--text);
    background: var(--card);
    border-radius: 12px;
    padding: 10px 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: border-color .12s ease, background .12s ease;
}
.primary-button { background: var(--accent-solid); border-color: var(--accent-solid); color: var(--accent-on-solid); font-weight: 700; }
.ghost-button:hover, .button-link:hover, .status-choice:hover, .icon-button:hover { border-color: rgba(var(--accent-rgb),.4); background: var(--card-soft); }
.primary-button:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.danger-link { color: var(--error-text); }
.icon-button { width: 40px; height: 40px; font-size: 25px; padding: 0; }
.status-choice { font-weight: 600; }
.status-choice.active { border-color: var(--accent); }

.drawer { position: sticky; top: 14px; width: 100%; max-height: calc(100vh - 28px); padding: 18px; z-index: 2; overflow-y: auto; border-radius: var(--radius); }
.drawer-empty { color: var(--muted); }
.drawer-empty-state { border: 1px dashed var(--line-strong); background: var(--card-soft); border-radius: 16px; padding: 16px; margin: 14px 0; }
.drawer-empty-state h3 { margin: 0 0 6px; color: var(--text); }
.drawer-empty-state p { margin: 0; line-height: 1.5; color: var(--muted); }
.map-settings-form {
    margin-top: 14px;
}
.map-settings-form label {
    color: var(--muted);
}
.map-settings-actions {
    padding-top: 0;
}
.map-settings-actions .primary-button {
    flex: 1 1 180px;
}
.map-settings-actions .ghost-button {
    flex: 1 1 150px;
}
.map-export-menu {
    margin: -4px 0 14px;
}
.map-export-menu:not([open]) {
    display: none;
}
.map-export-menu > summary {
    display: none;
}
.map-export-popover {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    padding: 6px;
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    background: var(--card);
    box-shadow: var(--shadow-soft);
}
.map-export-popover a,
.map-export-popover button {
    display: block;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    font: inherit;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}
.map-export-popover a:hover,
.map-export-popover a:focus,
.map-export-popover button:hover,
.map-export-popover button:focus {
    background: var(--surface-hover);
    outline: none;
}
.map-export-popover strong,
.map-export-popover small {
    display: block;
}
.map-export-popover strong {
    font-size: 13px;
    font-weight: 700;
}
.map-export-popover small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.35;
}
@media (max-width: 620px) {
    .map-export-popover {
        grid-template-columns: 1fr;
    }
}
.drawer-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 12px; }
.drawer-header h2 {
    margin: 0;
    font-size: var(--type-lg);
    font-weight: var(--weight-medium);
    line-height: 1.3;
    letter-spacing: var(--tracking-subheading);
    overflow-wrap: anywhere;
}
.breadcrumb { color: var(--muted); font-size: 12px; line-height: 1.5; background: var(--card-soft); border: 1px solid var(--line); border-radius: 12px; padding: 10px; margin-bottom: 14px; }
.drawer-form { display: grid; gap: 12px; }
.drawer-actions { display: flex; gap: 8px; flex-wrap: wrap; padding-top: 6px; }
.focus-action-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    margin: 0 !important;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--card);
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
}
.focus-action-toggle:hover {
    border-color: rgba(var(--accent-rgb),.4);
    background: var(--card-soft);
}
.focus-action-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.focus-action-toggle::before {
    content: "";
    width: 12px;
    height: 12px;
    border-radius: 999px;
    border: 2px solid currentColor;
    opacity: .72;
}
.focus-action-toggle input {
    margin: 0;
}
.drawer-section {
    border: 1px solid var(--line);
    border-radius: var(--detail-radius);
    background: var(--detail-surface);
    padding: 0;
    overflow: hidden;
    box-shadow: none;
}
/* Let an open selector escape the rounded drawer section instead of cutting off
   its remaining choices on narrow screens. */
.drawer-section:has(.minty-select.open),
.drawer-section:has(.date-picker-popover:not([hidden])) { overflow: visible; }
.drawer-section:has(.date-picker-popover:not([hidden])) { position: relative; z-index: 3; }
.drawer-section[open] { padding-bottom: var(--detail-padding); }
.drawer-section:not([open]) { padding-bottom: 0; }
.drawer-section[open] > :not(.drawer-section-heading) {
    margin-right: var(--detail-padding);
    margin-left: var(--detail-padding);
}
.drawer-section > label:last-child,
.drawer-section > section:last-child,
.drawer-section > .notice:last-child { margin-bottom: 0; }
.drawer-section-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 22px;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: var(--detail-padding);
    cursor: pointer;
    list-style: none;
}
.drawer-section[open] > .drawer-section-heading {
    margin-bottom: var(--detail-padding);
    border-bottom: 1px solid var(--line);
    background: var(--detail-surface-open);
}
.drawer-section-heading::-webkit-details-marker { display: none; }
.drawer-section-heading::after {
    content: "";
    width: 8px;
    height: 8px;
    display: grid;
    place-items: center;
    justify-self: end;
    margin-right: 4px;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: rotate(45deg) translateY(-2px);
    transition: transform .16s ease, border-color .16s ease;
}
.drawer-section[open] > .drawer-section-heading::after {
    transform: rotate(225deg) translate(-2px, -2px);
    border-color: var(--accent);
}
.drawer-section-heading span {
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
}
.drawer-section-basics,
.drawer-section-proof,
.drawer-section-notes,
.drawer-section-todos,
.drawer-section-relationships,
.drawer-section-private,
.drawer-section-reminders,
.drawer-section-advanced {
    border-color: var(--line);
    background: var(--detail-surface);
}
.drawer-section-basics,
.branch-additional-panel {
    transition: border-color .16s ease;
}
.drawer-section-basics[open],
.branch-additional-panel[open] {
    border-color: var(--accent);
}
.drawer-section-basics[open] > .drawer-section-heading,
.branch-additional-panel[open] > .drawer-section-heading {
    border-bottom-color: rgba(var(--accent-rgb), .42);
    background: linear-gradient(90deg, rgba(var(--accent-rgb), .09), var(--detail-surface-open) 58%);
}
.drawer-section-basics[open] > .drawer-section-heading span,
.branch-additional-panel[open] > .drawer-section-heading span {
    color: var(--accent);
}
.drawer-section .note-items-section,
.drawer-section .branch-notes-section,
.drawer-section .related-section,
.drawer-section .linked-map-section,
.drawer-section .branch-map-actions {
    border: 0;
    background: transparent;
    box-shadow: none;
    padding: 0;
    border-radius: 0;
}
.drawer-section .note-items-section,
.drawer-section .branch-notes-section,
.drawer-section .linked-map-section {
    margin: 14px 0 0;
    padding-top: 14px;
    border-top: 1px solid rgba(216,224,223,.72);
}
.drawer-section .note-items-section:first-child,
.drawer-section .branch-notes-section:first-child,
.drawer-section .linked-map-section:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.related-section,
.related-links { display: grid; gap: 8px; margin-bottom: 10px; }
.related-links.empty { color: var(--muted); font-size: 13px; }
.related-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    align-items: center;
    border: 1px solid var(--line);
    background: var(--card-soft);
    border-radius: 12px;
    padding: 8px;
}
.related-chip {
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--text);
    padding: 9px 10px;
    border-radius: 12px;
    min-width: 0;
    text-align: left;
}
.related-chip {
    display: grid;
    gap: 3px;
    overflow-wrap: anywhere;
}
.related-chip strong {
    font-size: 13px;
}
.related-chip small {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.35;
}
.related-chip em {
    color: var(--accent);
    font-size: 12px;
    font-style: normal;
    line-height: 1.35;
}
.relationship-note {
    margin: -2px 0 12px;
    padding: 9px 10px;
    border: 1px solid rgba(37,99,235,.16);
    border-radius: 12px;
    background: rgba(238,244,255,.7);
    color: var(--muted);
    font-size: 12px;
    line-height: 1.4;
}

.toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: var(--z-toast); border: 1px solid rgba(var(--accent-rgb),.22); background: #12201f; color: #fff; padding: 12px 14px; border-radius: 14px; box-shadow: var(--shadow); max-width: min(520px, calc(100vw - 24px)); display: flex; align-items: center; gap: 12px; }
.toast[hidden] { display: none; }
/* An open dialog keeps the page behind it still (UI-14). */
body.modal-open { overflow: hidden; }

.field-error { display: block; margin-top: 5px; color: var(--error-text); font-size: .84rem; font-weight: 700; }
[aria-invalid="true"] { border-color: var(--red) !important; }
.toast-action { border: 1px solid rgba(255,255,255,.34); background: rgba(255,255,255,.12); color: #fff; border-radius: 10px; padding: 7px 10px; font-weight: 700; }
.toast-action:hover { background: rgba(255,255,255,.2); }

.modal { position: fixed; inset: 0; z-index: var(--z-modal); display: grid; place-items: center; padding: 18px; background: var(--overlay); }
.modal[hidden] { display: none; }
.modal-card { width: min(620px, 100%); border-radius: 22px; padding: 18px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.modal-header h2 { margin-bottom: 0; }
code { background: var(--card-soft); border: 1px solid var(--line); border-radius: 7px; padding: 2px 5px; }

.setup-body { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.setup-card { width: min(520px, 100%); border-radius: 24px; padding: 28px; }
.setup-logo { width: 52px; height: 52px; display: block; padding: 6px; object-fit: contain; border-radius: 16px; background: var(--accent-soft); border: 1px solid rgba(var(--accent-rgb),.18); margin-bottom: 14px; }
.setup-card h1 { margin: 0 0 10px; letter-spacing: var(--tracking-display); }
.setup-card p { color: var(--muted); line-height: 1.55; }
.login-form { display: grid; gap: 14px; margin-top: 18px; }
.login-form label { display: grid; gap: 8px; color: var(--muted); }
.login-form button { border: 0; border-radius: 14px; padding: 12px 14px; background: var(--accent-solid); color: var(--accent-on-solid); font-weight: 700; }
.login-body {
    position: relative;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 18% 18%, rgba(var(--accent-rgb), .11), transparent 34%),
        radial-gradient(circle at 84% 82%, rgba(var(--accent-rgb), .07), transparent 30%),
        var(--bg);
}
.login-body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .16;
    background-image: linear-gradient(rgba(var(--accent-rgb), .12) 1px, transparent 1px), linear-gradient(90deg, rgba(var(--accent-rgb), .12) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, #000, transparent 72%);
}
.login-card {
    position: relative;
    width: min(570px, 100%);
    padding: 32px;
    overflow: hidden;
    border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
    box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .06), 0 26px 80px rgba(7, 19, 24, .24), 0 0 42px rgba(var(--accent-rgb), .08);
}
.login-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: .72;
}
.login-card-brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}
.login-card-brand .setup-logo { margin: 0; }
.login-website-link,
.login-return a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}
.login-website-link:hover,
.login-return a:hover { color: var(--accent); }
.login-card .eyebrow { margin-bottom: 7px; }
.login-card .login-card-intro { margin: 8px 0 0; max-width: 440px; }
.login-form { padding-top: 4px; border-top: 1px solid var(--line); }
.login-form button { min-height: 46px; cursor: pointer; box-shadow: 0 8px 22px rgba(var(--accent-rgb), .18); }
.login-form button:hover { filter: brightness(1.05); transform: translateY(-1px); }
.login-recovery-link {
    justify-self: end;
    margin-top: -6px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}
.login-recovery-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.login-entry-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 16px;
}
.login-entry-option {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: color-mix(in srgb, var(--accent) 4%, var(--card-soft));
    color: var(--text);
    text-decoration: none;
    transition: border-color .16s ease, background .16s ease, transform .16s ease;
}
.login-entry-option:hover {
    border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
    background: var(--accent-soft);
    transform: translateY(-1px);
}
.login-entry-option strong,
.login-entry-option small { display: block; }
.login-entry-option strong { font-size: 13px; line-height: 1.25; }
.login-entry-option small { margin-top: 3px; color: var(--muted); font-size: 11px; line-height: 1.35; }
.login-entry-icon {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 17px;
    font-weight: 800;
}
.login-return { margin: 18px 0 0; }
@media (max-width: 560px) {
    .login-body { padding: 14px; }
    .login-card { padding: 22px; border-radius: 20px; }
    .login-card-brand { align-items: flex-start; }
    .login-website-link { max-width: 130px; justify-content: flex-end; text-align: right; }
    .login-entry-options { grid-template-columns: 1fr; }
}
.notice { border-radius: 14px; padding: 12px; margin: 12px 0; font-size: 13px; line-height: 1.45; }
.notice.error { background: var(--red-soft); border: 1px solid rgba(217,83,79,.28); color: #8a1f1b; }
.notice.success { background: var(--green-soft); border: 1px solid rgba(22,163,74,.28); color: #14532d; }
.notice.accent { background: var(--accent-soft); border: 1px solid rgba(var(--accent-rgb),.3); color: var(--accent); }
.notice.warning { background: #fff8e5; border: 1px solid rgba(245,158,11,.28); color: #7a4d00; }
.notice.subtle { background: var(--accent-soft); border: 1px solid rgba(var(--accent-rgb),.16); color: var(--accent); margin-top: -2px; }
.small-warning { font-size: 13px; }
.profile-card .primary-button,
.profile-card .ghost-button { justify-content: center; text-decoration: none; }
.security-list {
    display: grid;
    gap: 10px;
    margin: 0 0 16px;
}
.security-list div {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 10px;
    background: var(--card-soft);
}
.security-list dt {
    font-weight: 700;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 3px;
}
.security-list dd { margin: 0; overflow-wrap: anywhere; }
.danger-zone {
    border-top: 1px solid var(--line);
    margin-top: 14px;
    padding-top: 14px;
}

@media (max-width: 900px) {
    .sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tree { min-width: 620px; }
}