/* === Intelligence shared styles ===
   Loaded by templates/base.html. Single source for design tokens, reset,
   sidebar nav, and main-content shell. Any template-level <style> should
   only contain *page-specific* rules. Drift here = drift everywhere — fix
   centrally, never inline a nav rule into a page. */

/* ---------- Design tokens ---------- */
:root {
    --bg: hsl(0 0% 97%); --fg: hsl(0 0% 13%);
    --card: hsl(0 0% 100%); --card-fg: hsl(0 0% 13%);
    --muted: hsl(0 0% 95%); --muted-fg: hsl(0 0% 45%);
    --border: hsl(0 0% 89%); --input: hsl(0 0% 89%);
    --primary: hsl(220 70% 50%); --primary-fg: hsl(0 0% 100%);
    --green: hsl(160 60% 40%); --orange: hsl(35 90% 50%); --red: hsl(0 65% 51%);
    --purple: hsl(270 60% 55%);
    --radius: 10px;
    --sb-bg: hsl(0 0% 98%); --sb-fg: hsl(0 0% 45%);
    --sb-primary: hsl(220 70% 50%); --sb-accent: hsl(220 60% 95%);
    --sb-accent-fg: hsl(220 70% 45%); --sb-border: hsl(0 0% 91%);
    --sb-muted: hsl(0 0% 60%); --sb-width: 220px; --sb-collapsed: 52px;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: hsl(0 0% 19%); --fg: hsl(0 0% 88%);
        --card: hsl(0 0% 23%); --card-fg: hsl(0 0% 88%);
        --muted: hsl(0 0% 28%); --muted-fg: hsl(0 0% 55%);
        --border: hsl(0 0% 33%); --input: hsl(0 0% 33%);
        --primary: hsl(220 70% 50%);
        --sb-bg: hsl(0 0% 21%); --sb-fg: hsl(0 0% 65%);
        --sb-accent: hsl(0 0% 31%); --sb-accent-fg: hsl(0 0% 90%);
        --sb-border: hsl(0 0% 29%); --sb-muted: hsl(0 0% 50%);
    }
}
[data-theme="dark"] {
    --bg: hsl(0 0% 19%); --fg: hsl(0 0% 88%);
    --card: hsl(0 0% 23%); --card-fg: hsl(0 0% 88%);
    --muted: hsl(0 0% 28%); --muted-fg: hsl(0 0% 55%);
    --border: hsl(0 0% 33%); --input: hsl(0 0% 33%);
    --primary: hsl(220 70% 50%);
    --sb-bg: hsl(0 0% 21%); --sb-fg: hsl(0 0% 65%);
    --sb-accent: hsl(0 0% 31%); --sb-accent-fg: hsl(0 0% 90%);
    --sb-border: hsl(0 0% 29%); --sb-muted: hsl(0 0% 50%);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }
body {
    height: 100%;
    overflow: hidden;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--fg);
    display: flex;
}

/* Auth pages (login) opt out of flex sidebar layout via .layout-auth */
body.layout-auth {
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ---------- Sidebar (canonical) ---------- */
.nav-sidebar {
    width: var(--sb-width);
    min-width: var(--sb-width);
    background: var(--sb-bg);
    color: var(--sb-fg);
    display: flex;
    flex-direction: column;
    transition: width 0.2s, min-width 0.2s;
    flex-shrink: 0;
    z-index: 10;
    border-right: 1px solid var(--sb-border);
    height: 100%;
}
.nav-sidebar.collapsed {
    width: var(--sb-collapsed);
    min-width: var(--sb-collapsed);
    overflow: visible;
}
.nav-sidebar.collapsed .nav-label { display: none; }
.nav-sidebar.collapsed .nav-toggle-icon { transform: rotate(180deg); }

/* Collapsed-state header layout. Reason for vertical stacking: 52-px sidebar
   can't fit logo + toggle side-by-side, the toggle button used to clip and
   become unclickable. Now both elements span full width and stay reachable. */
.nav-sidebar.collapsed .nav-header {
    padding: 10px 4px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.nav-sidebar.collapsed .nav-logo { width: 100%; justify-content: center; gap: 0; }
.nav-sidebar.collapsed .nav-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 4px;
}
.nav-sidebar.collapsed .nav-items { padding: 8px 4px; align-items: center; }
.nav-sidebar.collapsed .nav-item { justify-content: center; padding: 9px 0; width: 100%; }
.nav-sidebar.collapsed .nav-footer { padding: 8px; justify-content: center; }
.nav-sidebar.collapsed .theme-toggle .nav-label { display: none; }
.nav-sidebar.collapsed .theme-toggle { padding: 6px; }

.nav-header {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--sb-border);
    min-height: 53px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-icon {
    width: 32px; height: 32px;
    border-radius: 8px;
    background: var(--sb-primary);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.nav-logo-icon svg { width: 18px; height: 18px; stroke: white; fill: none; }
.nav-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--sb-accent-fg);
    letter-spacing: -0.2px;
}
.nav-toggle {
    background: none;
    border: none;
    color: var(--sb-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    min-width: 24px;
    min-height: 24px;
}
.nav-toggle:hover { color: var(--sb-accent-fg); }
.nav-toggle-icon { transition: transform 0.2s; display: flex; }
.nav-toggle svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

.nav-items {
    flex: 1;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
    overflow-x: hidden;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--sb-fg);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
    border-radius: 8px;
    white-space: nowrap;
}
.nav-item:hover { background: var(--sb-accent); color: var(--sb-accent-fg); }
.nav-item.active { background: var(--sb-accent); color: var(--sb-accent-fg); }
.nav-item-icon {
    width: 18px; height: 18px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-item-icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.5; }

.nav-spacer { flex: 1; }
.nav-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--sb-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--sb-border);
    color: var(--sb-fg);
    cursor: pointer;
    padding: 5px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: 0.15s;
}
.theme-toggle:hover { background: var(--sb-accent); color: var(--sb-accent-fg); }
.theme-toggle svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.8; }

/* ---------- Main content shell ---------- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
    min-width: 0;
}

/* ── NavPaste sub-tabs ── */
.np-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    padding: 4px;
    background: var(--muted);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: fit-content;
}
.np-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted-fg);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 7px;
    text-decoration: none;
    transition: all 0.15s ease;
    line-height: 1;
}
.np-tab:hover {
    color: var(--fg);
    background: var(--card);
}
.np-tab.active {
    color: var(--primary-fg);
    background: var(--primary);
    border-color: var(--primary);
}
.np-tab.active .np-tab-icon svg { stroke: var(--primary-fg); }
.np-tab-icon { display: inline-flex; align-items: center; }
.np-tab-icon svg { stroke: currentColor; }

/* ── Global Button Styles (used across all modules) ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 8px 16px; font-size: 13px; font-weight: 500;
    border: 1px solid transparent; border-radius: 8px;
    cursor: pointer; transition: all 0.15s ease;
    font-family: inherit; text-decoration: none; line-height: 1;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.btn-primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-outline { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-outline:hover:not(:disabled) { background: var(--muted); }
.btn-ghost { background: transparent; color: var(--muted-fg); border-color: transparent; }
.btn-ghost:hover:not(:disabled) { background: var(--muted); color: var(--fg); }
.btn-danger { background: var(--red); color: white; border-color: var(--red); }
.btn-danger:hover:not(:disabled) { filter: brightness(1.05); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 10px 20px; font-size: 14px; }

/* ── Page header (used across module pages) ── */
.page-header { padding: 28px 36px 8px; }
.page-header h1 { font-size: 22px; font-weight: 700; letter-spacing: -0.4px; margin: 0; }
.page-header p { font-size: 13px; color: var(--muted-fg); margin-top: 6px; }

/* ── Card (used across module pages) ── */
.card-section {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 24px 28px; margin: 12px 36px 20px;
}
.card-section + .card-section { margin-top: 20px; }


/* Phase 19e: Tag-Chip Styles (used in lists.html, contacts.html, list-picker, etc.) */
.tag-chip { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 11px; font-size: 11px; font-weight: 600; line-height: 1; }
.tag-chip-date { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 11px; font-size: 11px; font-weight: 600; background: hsl(0 0% 92%); color: hsl(0 0% 35%); }