* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f3f7fa;
  color: #173246;
}

header {
  padding: 42px max(24px, calc((100vw - 1100px) / 2));
  color: white;
  background: linear-gradient(135deg, #123e54, #18728e);
}

.brand {
  font-weight: 900;
  letter-spacing: 5px;
  opacity: .8;
}

h1 {
  margin: 10px 0 6px;
  font-size: clamp(32px, 5vw, 50px);
}

header p {
  margin: 0;
  font-size: 18px;
  opacity: .9;
}

main {
  width: min(1100px, calc(100% - 30px));
  margin: 28px auto 60px;
}

.warning {
  padding: 16px 18px;
  margin-bottom: 20px;
  border: 1px solid #ead185;
  border-radius: 12px;
  background: #fff6d8;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid #dbe7ed;
  border-radius: 18px;
  background: white;
  box-shadow: 0 12px 32px rgba(25, 72, 92, .08);
}

.card h2 {
  margin-top: 0;
}

label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 15px;
  font-weight: 700;
}

input, select, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #d7e4eb;
  border-radius: 10px;
  font: inherit;
}

.upload {
  min-height: 250px;
  align-items: center;
  justify-content: center;
  border: 2px dashed #b8ccd6;
  border-radius: 16px;
  cursor: pointer;
  background: #f8fbfc;
}

.upload input {
  display: none;
}

.upload span {
  color: #708492;
  font-weight: normal;
}

#previewWrap {
  display: grid;
  gap: 12px;
}

#preview {
  width: 100%;
  max-height: 350px;
  object-fit: contain;
  background: #061117;
  border-radius: 14px;
}

.hidden {
  display: none !important;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 15px 0;
}

button {
  padding: 11px 15px;
  border: 1px solid #cfdde4;
  border-radius: 10px;
  background: white;
  cursor: pointer;
  font-weight: 700;
}

button.active {
  color: #176b87;
  border-color: #176b87;
  background: #e7f4f7;
}

button.primary {
  color: white;
  background: #176b87;
  border-color: #176b87;
}

.result {
  padding: 20px;
  border-radius: 14px;
  background: #f7fafb;
}

.result p {
  line-height: 1.7;
}

.result span {
  color: #6b7f8d;
}

.report {
  padding: 22px;
  border-right: 4px solid #176b87;
  border-radius: 10px;
  background: #f7fafb;
  line-height: 1.8;
}

footer {
  padding: 25px;
  text-align: center;
  color: #6b7f8d;
}

@media (max-width: 760px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 18px;
  }
}

@media print {
  header,
  .warning,
  .grid,
  .card:nth-of-type(2),
  .buttons,
  footer {
    display: none !important;
  }

  body {
    background: white;
  }

  main {
    width: 100%;
    margin: 0;
  }

  .card {
    border: 0;
    box-shadow: none;
  }
}