* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  margin: 0;
  background: #0b0b0b;
  color: #eaeaea;
}

/* ================= HEADER ================= */

.site-header {
  width: 100%;
  background: #ffffff;
  border-bottom: 1px solid #ddd;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  text-align: center;
}

.header-inner img {
  max-width: 100%;
  height: auto;
}

/* ================= MAIN LAYOUT ================= */

.page {
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
}

/* ================= CARD ================= */

.card {
  width: 100%;
  max-width: 380px;
  background: #111;
  border: 1px solid #222;
  border-radius: 8px;
  padding: 25px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

.card h2 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 20px;
}

.card label {
  font-size: 14px;
  font-weight: 600;
  color: #ccc;
}

.card input {
  width: 100%;
  padding: 10px;
  margin: 8px 0 18px;
  background: #0b0b0b;
  border: 1px solid #333;
  border-radius: 4px;
  color: #fff;
}

.card input::placeholder {
  color: #777;
}

.card button {
  width: 100%;
  padding: 12px;
  background: #f4b400;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  cursor: pointer;
  color: #000;
}

.card button:hover {
  background: #e0a800;
}

/* ================= RESULT ================= */

.result-card {
  width: 100%;
  max-width: 900px;
  margin-top: 40px;
  background: #111;
  border: 1px solid #222;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 18px 35px rgba(0,0,0,0.5);
}

.result-card:empty {
  display: none;
}

/* ================= TABLE ================= */

.result-card table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

.result-card th,
.result-card td {
  border: 1px solid #333;
  padding: 8px;
  text-align: center;
}

.result-card th {
  background: #1a1a1a;
  color: #fff;
}

/* ================= TEXT ================= */

.result-card h2,
.result-card h3,
.result-card p {
  margin: 6px 0;
  color: #eaeaea;
}

/* ================= RESPONSIVE ================= */

@media (max-width: 600px) {
  .page {
    padding: 25px 15px;
  }

  .card {
    padding: 20px;
  }

  .result-card {
    padding: 15px;
  }
}