/* ==========================================================================
   BNI Chapter Portal — base stylesheet
   Mobile-first. White background, black text, blood-red accents.
   ========================================================================== */

:root {
  --bg:            #ffffff;
  --bg-soft:       #fafafa;
  --bg-muted:      #f3f3f3;
  --border:        #e6e6e6;
  --border-strong: #cfcfcf;
  --fg:            #111111;
  --fg-muted:      #555555;
  --fg-faint:      #8a8a8a;

  --accent:        #b00020;          /* blood red */
  --accent-strong: #8b0000;
  --accent-soft:   #f9e7ea;
  --accent-fg:     #ffffff;

  --success:       #1f7a3a;
  --warning:       #b06b00;
  --danger:        #b00020;
  --info:          #0b5cad;

  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow:    0 4px 12px rgba(0,0,0,0.08);

  --font-sans: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --container-max: 1100px;
  --header-h: 56px;
  --sidebar-w: 260px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }
p  { margin: 0 0 1em; }

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

img, svg { max-width: 100%; display: block; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  display: flex; align-items: center;
  padding: 0 16px;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; width: 100%; max-width: none; padding: 0; margin: 0;
}
@media (min-width: 900px) {
  .site-header { padding: 0 24px; }
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--fg);
}
.brand-mark {
  width: 28px; height: 28px; border-radius: var(--radius-sm);
  background: var(--accent); color: var(--accent-fg);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
}
.brand-text { font-size: 1rem; }

/* Mobile menu toggle (only shown under 768px) */
.nav-toggle {
  background: none; border: 0; padding: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--fg); cursor: pointer;
}
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Header user pill (top right) */
.header-user {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .9rem; color: var(--fg-muted);
}
.header-user a { color: var(--fg); }

/* Impersonation banner */
.impersonation-banner {
  background: var(--accent); color: #fff;
  padding: 10px 16px;
  font-size: .9rem;
  position: sticky; top: var(--header-h); z-index: 49;
}
.impersonation-banner .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; max-width: none; padding: 0;
}
.impersonation-banner .btn { min-height: 32px; padding: 4px 12px; }
@media (min-width: 900px) {
  .impersonation-banner { padding: 10px 24px; }
}

/* Admin chapter-context banner (softer than impersonation) */
.context-banner {
  background: #fff8e6; color: #6a4a00;
  border-bottom: 1px solid #f1d7a8;
  padding: 8px 16px; font-size: .9rem;
}
.context-banner .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; max-width: none; padding: 0;
}
@media (min-width: 900px) {
  .context-banner { padding: 8px 24px; }
}

/* Sidebar admin chapter-context picker */
.admin-context {
  padding: 10px 12px;
  margin: 8px 12px 4px;
  background: var(--accent-soft);
  border: 1px solid #f1c4ca;
  border-radius: var(--radius);
}
.admin-context-label {
  font-size: .72rem; font-weight: 600;
  color: var(--accent-strong); text-transform: uppercase;
  letter-spacing: .04em; margin-bottom: 6px;
}

/* App shell: sidebar + main content (bulletproof fallback: block layout if grid unavailable) */
.app-shell {
  display: block;
  min-height: calc(100vh - var(--header-h) - 60px);
}
.app-sidebar {
  background: var(--bg);
  border-right: 1px solid var(--border);
  padding: 12px 0;
}
.app-main {
  display: block;
  min-width: 0;
  width: 100%;
  padding: 16px 0 48px;
  background: var(--bg);
}
.app-main > .container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 16px;
}

/* Sidebar nav */
.nav-group { border-bottom: 1px solid var(--border); }
.nav-group > summary {
  list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  font-weight: 600; font-size: .9rem;
  cursor: pointer; user-select: none;
  color: var(--fg);
}
.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary:hover { background: var(--bg-muted); }
.nav-group > summary::after {
  content: '▸';
  color: var(--fg-faint);
  transition: transform .15s ease;
  font-size: .8rem;
}
.nav-group[open] > summary::after { transform: rotate(90deg); }
.nav-group ul { list-style: none; margin: 0; padding: 0 0 8px; }
.nav-group a {
  display: block; padding: 8px 18px 8px 30px;
  color: var(--fg); font-size: .95rem; border-left: 3px solid transparent;
}
.nav-group a:hover { background: var(--accent-soft); text-decoration: none; }
.nav-group a.is-active { background: var(--accent-soft); border-left-color: var(--accent); color: var(--accent-strong); font-weight: 500; }

/* Desktop: flex row — sidebar 260px fixed, main fills the rest. */
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .app-shell {
    display: flex;
    align-items: stretch;
  }
  .app-sidebar {
    flex: 0 0 var(--sidebar-w);
    width: var(--sidebar-w);
    position: sticky; top: var(--header-h);
    height: calc(100vh - var(--header-h));
    overflow-y: auto;
    align-self: flex-start;
  }
  .app-main {
    flex: 1 1 auto;
    min-width: 0;
    padding: 24px 0 64px;
  }
  .app-main > .container { max-width: none; padding: 0 24px; margin: 0; }
}

/* Mobile: sidebar slides in from left when toggle is active (drawer). */
@media (max-width: 899px) {
  .app-shell { display: block; }
  .app-sidebar {
    position: fixed;
    top: var(--header-h); left: 0; right: auto; bottom: 0;
    z-index: 40; background: var(--bg);
    transform: translateX(-100%);
    transition: transform .2s ease;
    overflow-y: auto;
    width: 86vw; max-width: 320px;
    border-right: 1px solid var(--border);
    box-shadow: 2px 0 12px rgba(0,0,0,0.08);
  }
  .app-sidebar[aria-hidden="false"] { transform: translateX(0); }
  .app-main { display: block; width: 100%; }
  .sidebar-backdrop {
    display: none;
    position: fixed; inset: var(--header-h) 0 0 0;
    background: rgba(0,0,0,0.4); z-index: 39;
  }
  .app-sidebar[aria-hidden="false"] ~ .sidebar-backdrop { display: block; }
}

/* ---------- Site footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 48px; padding: 20px 16px;
  color: var(--fg-muted); font-size: .9rem;
}
.site-footer .container {
  max-width: none; padding: 0; width: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
@media (min-width: 900px) {
  .site-footer { padding: 20px 24px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; min-height: 44px; padding: 10px 18px;
  font: inherit; font-weight: 500;
  border: 1px solid transparent; border-radius: var(--radius);
  cursor: pointer; text-decoration: none;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }

.btn-primary  { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover  { background: var(--accent-strong); text-decoration: none; }

.btn-secondary { background: var(--bg); color: var(--fg); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-muted); text-decoration: none; }

.btn-ghost { background: transparent; color: var(--fg); }
.btn-ghost:hover { background: var(--bg-muted); text-decoration: none; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-block  { width: 100%; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.label { font-weight: 500; font-size: .95rem; }
.input, .select, .textarea {
  width: 100%;
  padding: 10px 12px; min-height: 44px;
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--border-strong); border-radius: var(--radius);
}
.input:focus, .select:focus, .textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 1px;
  border-color: var(--accent);
}
.textarea { min-height: 96px; }
.help    { font-size: .85rem; color: var(--fg-muted); }
.invalid { border-color: var(--danger); }
.error   { color: var(--danger); font-size: .85rem; }

/* ---------- Cards & panels ---------- */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  box-sizing: border-box;
}
.card + .card { margin-top: 16px; }
.card-title { margin: 0 0 8px; font-size: 1.05rem; }
.card-meta  { color: var(--fg-muted); font-size: .9rem; margin-bottom: 12px; }

/* Module / dashboard tile grid — uniform card heights, clamped description. */
.tile-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  align-items: stretch;
}
.tile-grid .card + .card { margin-top: 0; }  /* grid handles spacing */
.tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 120px;
  height: 100%;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color .12s ease, box-shadow .12s ease, transform .12s ease;
}
.tile:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  text-decoration: none;
  transform: translateY(-1px);
}
.tile-title {
  font-size: 1rem; font-weight: 600; line-height: 1.3;
  color: var(--fg);
  word-break: break-word;
}
.tile-desc {
  font-size: .85rem; line-height: 1.35;
  color: var(--fg-muted);
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3;
  overflow: hidden;
  word-break: break-word;
}

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 14px; border-radius: var(--radius);
  border: 1px solid var(--border-strong); background: var(--bg-soft);
  color: var(--fg);
}
.alert + .alert { margin-top: 8px; }
.alert-success { border-color: #b9e0c5; background: #ebf7ef; color: var(--success); }
.alert-danger  { border-color: #f1c4ca; background: var(--accent-soft); color: var(--accent-strong); }
.alert-info    { border-color: #c0d7ee; background: #eaf3fc; color: var(--info); }
.alert-warn    { border-color: #f1d7a8; background: #fcf3e0; color: var(--warning); }

/* ---------- Pills / badges ---------- */
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: .8rem; line-height: 1.4; background: var(--bg-muted); color: var(--fg);
}
.badge-accent  { background: var(--accent-soft); color: var(--accent-strong); }
.badge-success { background: #ebf7ef; color: var(--success); }
.badge-warn    { background: #fcf3e0; color: var(--warning); }
.badge-info    { background: #eaf3fc; color: var(--info); }

/* ---------- Page hero / sections ---------- */
.page { padding: 24px 0 48px; }
.page-header { margin-bottom: 16px; }
.muted { color: var(--fg-muted); }

/* ---------- Utilities ---------- */
.stack    { display: grid; gap: 16px; }
.stack-sm { display: grid; gap: 8px; }
.row      { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.between  { justify-content: space-between; }
.center   { text-align: center; }
.hide     { display: none !important; }

@media (min-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .page { padding: 32px 0 64px; }
}

/* Visually hidden but available to screen readers */
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}