*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --purple: #512BD4;
  --purple-light: #EDE7F6;
  --purple-dark: #3b1fa0;
  --pink: #E91E63;
  --green: #4CAF50;
  --orange: #FF9800;
  --red: #F44336;
  --bg: #F8F5FF;
  --white: #ffffff;
  --text: #1a1a2e;
  --muted: #666;
  --border: #e0d9f7;
  --shadow: 0 2px 12px rgba(81,43,212,.08);
  --radius: 14px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Login page ── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--purple) 0%, #7b52d4 100%);
}
.login-card {
  background: var(--white);
  border-radius: 24px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.login-logo { font-size: 36px; text-align: center; margin-bottom: 8px; }
.login-title { font-size: 26px; font-weight: 700; text-align: center; color: var(--purple); margin-bottom: 4px; }
.login-sub { font-size: 14px; color: var(--muted); text-align: center; margin-bottom: 32px; }

/* ── Form elements ── */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: #444; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  transition: border-color .2s;
  background: var(--white);
  color: var(--text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(81,43,212,.1);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.btn-primary { background: var(--purple); color: #fff; }
.btn-primary:hover { background: var(--purple-dark); transform: translateY(-1px); }
.btn-secondary { background: var(--purple-light); color: var(--purple); }
.btn-secondary:hover { background: #ddd5f5; }
.btn-danger { background: #FFEBEE; color: var(--red); }
.btn-danger:hover { background: #ffcdd2; }
.btn-success { background: #E8F5E9; color: var(--green); }
.btn-success:hover { background: #c8e6c9; }
.btn-full { width: 100%; justify-content: center; padding: 14px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ── Layout ── */
.portal-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--purple);
  padding: 32px 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.sidebar-logo {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  padding: 0 24px 32px;
  border-bottom: 1px solid rgba(255,255,255,.15);
  margin-bottom: 16px;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all .15s;
  border-left: 3px solid transparent;
}
.sidebar-nav a:hover, .sidebar-nav a.active {
  color: #fff;
  background: rgba(255,255,255,.1);
  border-left-color: #fff;
}
.sidebar-nav a .icon { font-size: 18px; width: 22px; text-align: center; }
.sidebar-footer {
  margin-top: auto;
  padding: 16px 24px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.sidebar-footer .user-info { font-size: 12px; color: rgba(255,255,255,.6); margin-bottom: 8px; }
.sidebar-footer .user-email { font-size: 13px; color: #fff; font-weight: 500; word-break: break-all; }

.main-content { flex: 1; overflow: auto; }

.page-header {
  background: var(--white);
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page-header h1 { font-size: 22px; font-weight: 700; color: var(--purple); }
.page-header p { font-size: 13px; color: var(--muted); margin-top: 2px; }

.page-body { padding: 32px; }

/* ── Cards & stat tiles ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Tables ── */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 14px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; border-bottom: 2px solid var(--border); }
td { padding: 14px; font-size: 14px; border-bottom: 1px solid #f0ebfd; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #faf7ff; }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-error { background: #FFEBEE; color: var(--red); }
.badge-warning { background: #FFF8E1; color: #F57F17; }
.badge-info { background: #E3F2FD; color: #1565C0; }
.badge-success { background: #E8F5E9; color: #2E7D32; }
.badge-resolved { background: #F5F5F5; color: #757575; }

/* ── Upload zone ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: #fdfbff;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--purple);
  background: var(--purple-light);
}
.upload-zone .upload-icon { font-size: 40px; margin-bottom: 12px; }
.upload-zone p { color: var(--muted); font-size: 14px; }
.upload-zone strong { color: var(--purple); }

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alert-error { background: #FFEBEE; color: #C62828; border-left: 4px solid var(--red); }
.alert-success { background: #E8F5E9; color: #2E7D32; border-left: 4px solid var(--green); }
.alert { display: none; }
.alert.show { display: flex; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--white);
  border-radius: 20px;
  padding: 32px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.modal-title { font-size: 20px; font-weight: 700; color: var(--purple); margin-bottom: 20px; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }

/* ── File icon colours ── */
.file-icon { font-size: 24px; }
.file-size { color: var(--muted); font-size: 12px; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state .empty-icon { font-size: 52px; margin-bottom: 16px; }
.empty-state h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #444; }

/* ── Filters row ── */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px; align-items: center; }
.filter-btn {
  padding: 7px 16px;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: var(--white);
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
  font-weight: 500;
}
.filter-btn.active, .filter-btn:hover { background: var(--purple); color: #fff; border-color: var(--purple); }
.search-input {
  padding: 8px 14px;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  width: 220px;
  margin-left: auto;
}
.search-input:focus { outline: none; border-color: var(--purple); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .portal-layout { flex-direction: column; }
  .sidebar { width: 100%; padding: 16px 0; }
  .sidebar-nav { display: flex; overflow-x: auto; }
  .sidebar-nav a { flex-direction: column; gap: 4px; font-size: 11px; padding: 10px 16px; border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; }
  .sidebar-nav a.active, .sidebar-nav a:hover { border-left-color: transparent; border-bottom-color: #fff; }
  .page-body { padding: 16px; }
}