/* ── Reset & Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Light theme (default) ────────────────────────────────────────────── */
:root {
  --primary:      #4f46e5;
  --primary-h:    #4338ca;
  --primary-dim:  #3730a3;
  --danger:       #dc2626;
  --danger-h:     #b91c1c;
  --success:      #16a34a;
  --warning:      #d97706;
  --bg:           #f8fafc;
  --bg-alt:       #f1f5f9;
  --surface:      #ffffff;
  --surface-alt:  #f8fafc;
  --border:       #e2e8f0;
  --border-h:     #cbd5e1;
  --text:         #1e293b;
  --text-inv:     #ffffff;
  --muted:        #64748b;
  --radius:       8px;
  --shadow:       0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --focus-ring:   rgba(79,70,229,.2);
  --modal-bg:     rgba(0,0,0,.45);
  --th-bg:        #f8fafc;
  --tr-hover:     #f8fafc;
  --input-bg:     #ffffff;
  --btn-sec-bg:   #f1f5f9;
  --btn-sec-h:    #e2e8f0;
  --pagination-h: #f1f5f9;
  --alert-ok-bg:  #dcfce7; --alert-ok-text: #15803d; --alert-ok-border: #86efac;
  --alert-err-bg: #fee2e2; --alert-err-text: #991b1b; --alert-err-border: #fca5a5;
  --alert-wrn-bg: #fef3c7; --alert-wrn-text: #92400e; --alert-wrn-border: #fcd34d;
  --login-shadow: 0 20px 40px rgba(0,0,0,.25);
}

/* ── Dark theme ───────────────────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root {
    --primary:      #818cf8;
    --primary-h:    #a5b4fc;
    --primary-dim:  #6366f1;
    --danger:       #f87171;
    --danger-h:     #fca5a5;
    --success:      #4ade80;
    --warning:      #fbbf24;
    --bg:           #0f172a;
    --bg-alt:       #1e293b;
    --surface:      #1e293b;
    --surface-alt:  #0f172a;
    --border:       #334155;
    --border-h:     #475569;
    --text:         #e2e8f0;
    --text-inv:     #0f172a;
    --muted:        #94a3b8;
    --shadow:       0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
    --shadow-md:    0 4px 6px rgba(0,0,0,.5), 0 2px 4px rgba(0,0,0,.4);
    --focus-ring:   rgba(129,140,248,.25);
    --modal-bg:     rgba(0,0,0,.7);
    --th-bg:        #0f172a;
    --tr-hover:     #263248;
    --input-bg:     #0f172a;
    --btn-sec-bg:   #334155;
    --btn-sec-h:    #475569;
    --pagination-h: #334155;
    --alert-ok-bg:  #14532d; --alert-ok-text: #86efac; --alert-ok-border: #166534;
    --alert-err-bg: #7f1d1d; --alert-err-text: #fca5a5; --alert-err-border: #991b1b;
    --alert-wrn-bg: #78350f; --alert-wrn-text: #fcd34d; --alert-wrn-border: #92400e;
    --login-shadow: 0 20px 60px rgba(0,0,0,.7);
  }
}

/* ── Body ─────────────────────────────────────────────────────────────── */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navbar ───────────────────────────────────────────────────────────── */
.navbar {
  background: var(--primary-dim);
  color: var(--text-inv);
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
}
@media (prefers-color-scheme: dark) {
  .navbar { background: #1e1b4b; }
}
.nav-brand { font-size: 1.15rem; font-weight: 700; letter-spacing: -.3px; color: #fff; }
.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a, .btn-link {
  color: rgba(255,255,255,.85);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-links a:hover, .btn-link:hover { color: #fff; text-decoration: underline; }
.nav-logout-form { display: inline; }

/* ── Container ───────────────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.25rem;
  flex: 1;
}

/* ── Cards ────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.card-below { margin-top: 1.5rem; }

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}
.card-header-left { display: flex; align-items: baseline; gap: .75rem; }
.card-header-title { font-size: 1.25rem; font-weight: 700; color: var(--text); }
.card-header-meta { color: var(--muted); font-size: .85rem; }
.card-header-meta strong { color: var(--text); }

/* ── Forms ────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: .3rem;
  color: var(--muted);
}
.req { color: var(--danger); }

input[type=text], input[type=email], input[type=tel],
input[type=number], input[type=date], input[type=password],
textarea, select {
  width: 100%;
  padding: .55rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--input-bg);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--focus-ring);
}
textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: .75rem; margin-top: .5rem; }

/* Date input icon tint in dark mode */
@media (prefers-color-scheme: dark) {
  input[type=date]::-webkit-calendar-picker-indicator { filter: invert(1); }
  select option { background: var(--surface); color: var(--text); }
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background .15s, transform .1s;
}
.btn:active { transform: scale(.98); }
.btn-primary        { background: var(--primary);    color: #fff; }
.btn-primary:hover  { background: var(--primary-h);  color: var(--text-inv); }
.btn-danger         { background: var(--danger);      color: #fff; }
.btn-danger:hover   { background: var(--danger-h);    color: var(--text-inv); }
.btn-secondary      { background: var(--btn-sec-bg);  color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover{ background: var(--btn-sec-h); }
.btn-sm { padding: .3rem .7rem; font-size: .8rem; }

/* ── Alerts ───────────────────────────────────────────────────────────── */
.alert {
  padding: .85rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: .9rem;
  font-weight: 500;
}
.alert-success { background: var(--alert-ok-bg);  color: var(--alert-ok-text);  border: 1px solid var(--alert-ok-border); }
.alert-danger  { background: var(--alert-err-bg); color: var(--alert-err-text); border: 1px solid var(--alert-err-border); }
.alert-warning { background: var(--alert-wrn-bg); color: var(--alert-wrn-text); border: 1px solid var(--alert-wrn-border); }

/* ── Tables ───────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th {
  background: var(--th-bg);
  text-align: left;
  font-weight: 700;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  padding: .65rem .9rem;
  border-bottom: 2px solid var(--border);
}
td {
  padding: .65rem .9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--tr-hover); }
.actions { display: flex; gap: .5rem; }
.table-empty { text-align: center; color: var(--muted); padding: 2rem !important; }
td.td-muted { color: var(--muted); }
.donor-link { font-weight: 600; text-decoration: none; color: var(--primary); }
.donor-link:hover { text-decoration: underline; }

/* ── Login page ───────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #312e81 0%, #4c1d95 100%);
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--login-shadow);
}
.login-logo  { text-align: center; font-size: 2.5rem; margin-bottom: .5rem; }
.login-title { text-align: center; font-size: 1.4rem; font-weight: 700; margin-bottom: 1.75rem; color: var(--text); }
.login-btn   { width: 100%; justify-content: center; padding: .75rem; font-size: 1rem; }

/* ── Page header ──────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.page-header-actions { display: flex; gap: .5rem; }

/* ── Search bar ───────────────────────────────────────────────────────── */
.search-bar { display: flex; gap: .5rem; margin-bottom: 1.25rem; }
.search-bar input { flex: 1; }

/* ── Pagination ───────────────────────────────────────────────────────── */
.pagination { display: flex; gap: .4rem; margin-top: 1.25rem; justify-content: center; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: .4rem .75rem;
  border-radius: var(--radius);
  font-size: .875rem;
  text-decoration: none;
  border: 1px solid var(--border);
  color: var(--text);
}
.pagination a:hover { background: var(--pagination-h); }
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Stats strip ──────────────────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.75rem; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.stat-value { font-size: 1.75rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: .8rem; color: var(--muted); margin-top: .2rem; }

/* ── Donor detail view ────────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem 1.5rem;
  font-size: .92rem;
}
.detail-grid .label { font-weight: 600; color: var(--muted); }
.detail-grid a { color: var(--primary); }
.detail-grid a:hover { color: var(--primary-h); }

/* ── Donations filter bar ─────────────────────────────────────────────── */
.filter-bar { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.filter-bar .form-group { margin: 0; }
.donations-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}
.donations-summary-count { color: var(--muted); font-size: .9rem; }
.donations-summary-total { font-weight: 700; color: var(--text); }

/* ── Footer ───────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: .8rem;
  border-top: 1px solid var(--border);
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .form-row       { grid-template-columns: 1fr; }
  .stats          { grid-template-columns: 1fr; }
  .detail-grid    { grid-template-columns: 1fr; }
  .filter-bar     { flex-direction: column; align-items: stretch; }
}

/* ── Modal / confirm dialog ───────────────────────────────────────────── */
.modal-bg {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--modal-bg);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-md);
}
.modal h3 { margin-bottom: .75rem; color: var(--text); }
.modal p  { color: var(--muted); margin-bottom: 1.5rem; }
.modal-actions { display: flex; gap: .75rem; justify-content: flex-end; }
/* ── Import / Export page ─────────────────────────────────────────────── */
.section-desc {
  color: var(--muted);
  font-size: .9rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.export-btns {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

/* Import info block */
.import-info {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}
.import-info-title {
  font-weight: 700;
  font-size: .95rem;
  margin-bottom: .5rem;
  color: var(--text);
}
.csv-columns {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .75rem 0;
}
.csv-columns code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .15rem .5rem;
  font-size: .82rem;
  color: var(--primary);
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
}
.import-rules {
  padding-left: 1.25rem;
  font-size: .875rem;
  color: var(--muted);
  margin-bottom: 1rem;
  line-height: 1.8;
}
.import-rules li { margin-bottom: .15rem; }
.import-rules strong { color: var(--text); }
.import-rules em { color: var(--warning); font-style: normal; font-weight: 600; }
.import-rules code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: .1rem .35rem;
  font-size: .8rem;
  color: var(--primary);
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
}

/* Import error list */
.import-error-title {
  font-weight: 700;
  margin-bottom: .5rem;
}
.import-error-list {
  padding-left: 1.25rem;
  margin: .5rem 0;
  font-size: .875rem;
  line-height: 1.8;
  max-height: 200px;
  overflow-y: auto;
}
.import-error-note {
  font-size: .8rem;
  margin-top: .5rem;
  opacity: .85;
}

/* Alert link */
.alert-link {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
}

/* Drop zone */
.import-drop-zone { margin-bottom: 1rem; }
.drop-zone-inner {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  position: relative;
  background: var(--input-bg);
}
.drop-zone-inner:hover,
.drop-zone-inner.dragover {
  border-color: var(--primary);
  background: var(--bg-alt);
}
.drop-zone-icon {
  font-size: 2rem;
  margin-bottom: .5rem;
  line-height: 1;
}
.drop-zone-text {
  color: var(--muted);
  font-size: .9rem;
}
.drop-zone-text.has-file {
  color: var(--success);
  font-weight: 600;
}
/* The actual file input is invisible — clicking the zone triggers it */
.drop-zone-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

@media (max-width: 640px) {
  .export-btns { flex-direction: column; }
}
/* ── Business donor UI ────────────────────────────────────────────────── */

/* Utility: JS hides elements with this class */
.hidden { display: none !important; }

/* Contact person hint shown under name fields for business donors */
.contact-person-hint {
  font-size: .8rem;
  color: var(--muted);
  margin-top: -.5rem;
  margin-bottom: 1rem;
  font-style: italic;
}

/* Donor type emoji shown in list and detail view */
.donor-type-emoji {
  font-size: .95rem;
  vertical-align: middle;
  line-height: 1;
}

/* ── Address cell in donors table ────────────────────────────────────── */
.td-address span {
  display: block;
  line-height: 1.4;
}