@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=DM+Mono:wght@400;500&display=swap');

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

:root {
  --bg:        #F0F2F5;
  --surface:   #FFFFFF;
  --border:    #E2E5EA;
  --text:      #1A1D23;
  --muted:     #6B7280;
  --accent:    #2563EB;
  --accent-lt: #EFF4FF;
  --green:     #16A34A;
  --green-lt:  #DCFCE7;
  --amber:     #D97706;
  --amber-lt:  #FEF3C7;
  --red:       #DC2626;
  --red-lt:    #FEE2E2;
  --gray-lt:   #F3F4F6;
  --radius:    12px;
  --shadow:    0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 0 0 60px;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
header .logo {
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 10px;
  display: grid; place-items: center;
}
header .logo svg { color: #fff; }
header h1 { font-size: 1.1rem; font-weight: 600; letter-spacing: -.02em; }
header p  { font-size: .78rem; color: var(--muted); margin-top: 1px; }

/* ── Main layout ── */
main { max-width: 680px; margin: 0 auto; padding: 24px 16px; }

/* ── Add package card ── */
.add-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.add-card h2 { font-size: .85rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }

.input-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.input-row input, .input-row select {
  font-family: inherit;
  font-size: .9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  outline: none;
  background: var(--gray-lt);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.input-row input { flex: 1; min-width: 160px; font-family: 'DM Mono', monospace; font-size: .85rem; }
.input-row input::placeholder { font-family: 'Inter', sans-serif; color: var(--muted); }
.input-row input:focus, .input-row select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
  background: #fff;
}
.input-row select { cursor: pointer; }

.btn {
  font-family: inherit;
  font-size: .9rem;
  font-weight: 500;
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: .9; }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }

.msg { font-size: .82rem; margin-top: 10px; min-height: 18px; }
.msg.error { color: var(--red); }
.msg.ok    { color: var(--green); }

/* ── Package list ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.section-header h2 { font-size: .85rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.btn-refresh { font-size: .8rem; padding: 6px 14px; background: var(--gray-lt); color: var(--text); border: 1px solid var(--border); }
.btn-refresh:hover { background: var(--border); }

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--muted);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
}
.empty-state .icon { font-size: 2.2rem; margin-bottom: 10px; }

/* ── Package card ── */
.pkg-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
  transition: box-shadow .15s;
}
.pkg-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.1); }

.pkg-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.pkg-name { font-weight: 600; font-size: .95rem; margin-bottom: 2px; }
.pkg-number { font-family: 'DM Mono', monospace; font-size: .78rem; color: var(--muted); }

.pkg-actions { display: flex; gap: 6px; align-items: center; }
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 1rem;
  transition: background .15s, color .15s;
}
.btn-icon:hover { background: var(--gray-lt); color: var(--text); }
.btn-icon.delete:hover { background: var(--red-lt); color: var(--red); }

/* Status badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .75rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
}
.badge.delivered  { background: var(--green-lt); color: var(--green); }
.badge.in-transit { background: var(--accent-lt); color: var(--accent); }
.badge.pending    { background: var(--amber-lt);  color: var(--amber); }
.badge.exception  { background: var(--red-lt);    color: var(--red); }
.badge.unknown    { background: var(--gray-lt);   color: var(--muted); }

/* Events timeline */
.pkg-events {
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: none;
}
.pkg-card.expanded .pkg-events { display: block; }

.event {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px;
  padding: 6px 0;
  font-size: .82rem;
  border-bottom: 1px solid var(--border);
}
.event:last-child { border-bottom: none; }
.event-time { color: var(--muted); font-family: 'DM Mono', monospace; font-size: .76rem; }
.event-desc { color: var(--text); }

.toggle-events {
  margin-top: 10px;
  font-size: .8rem;
  color: var(--accent);
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  padding: 0;
}
.toggle-events:hover { text-decoration: underline; }

/* Loading spinner */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 480px) {
  .input-row { flex-direction: column; }
  .event { grid-template-columns: 1fr; gap: 2px; }
  .event-time { color: var(--muted); }
}