:root {
  --navy: #0b1f4d;
  --navy-2: #122a63;
  --ink: #111;
  --muted: #6b7280;
  --line: #e5e7eb;
  --card: #111;
  --search-bg: #f3f4f6;
  --font: "Segoe UI", Tahoma, "Noto Sans Bengali", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: var(--ink);
  font-family: var(--font);
  min-height: 100%;
}

.wrap {
  width: min(920px, 92vw);
  margin: 0 auto;
  padding: 28px 0 40px;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  margin-top: 8px;
}
.brand img {
  height: 70px;
  width: auto;
  max-width: 92%;
  object-fit: contain;
}
.brand .bn {
  margin: 8px 0 0;
  font-size: 1.15rem;
  font-weight: 700;
}
.brand .en {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero {
  margin-top: 56px;
  text-align: center;
}
.hero h2 {
  margin: 0 0 22px;
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 700;
}

.search-form {
  display: flex;
  width: min(560px, 100%);
  margin: 0 auto;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  overflow: hidden;
  background: var(--search-bg);
}
.search-form input[type="text"] {
  flex: 1;
  border: 0;
  outline: 0;
  padding: 14px 16px;
  font-size: 1rem;
  background: transparent;
  color: #111;
}
.search-form input::placeholder { color: #9ca3af; }
.search-form button {
  width: 56px;
  border: 0;
  cursor: pointer;
  background: var(--navy);
  display: grid;
  place-items: center;
}
.search-form button:hover { background: var(--navy-2); }
.search-form button svg { width: 20px; height: 20px; fill: #fff; }

.msg {
  width: min(560px, 100%);
  margin: 16px auto 0;
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 0.95rem;
}
.msg.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.result-tools {
  width: min(720px, 100%);
  margin: 28px auto 8px;
  display: flex;
  justify-content: flex-end;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.85rem;
  color: #374151;
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  text-decoration: none;
}
.btn-download:hover { background: #f9fafb; }
.btn-download svg { width: 14px; height: 14px; }

.card {
  width: min(720px, 100%);
  margin: 0 auto;
  background: var(--card);
  color: #fff;
  border-radius: 4px;
  padding: 22px 26px 26px;
  text-align: left;
}
.card h3 {
  margin: 0 0 18px;
  font-size: 1.05rem;
  font-weight: 700;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 28px;
}
.field { margin: 0 0 12px; }
.field .label {
  display: block;
  font-size: 0.78rem;
  color: #9ca3af;
  margin-bottom: 2px;
}
.field .value {
  font-size: 0.98rem;
  font-weight: 600;
  color: #fff;
  word-break: break-word;
}

.site-footer {
  width: min(920px, 92vw);
  margin: 80px auto 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .hero { margin-top: 36px; }
  .card { padding: 18px; }
  .brand img { height: 56px; }
}