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

body {
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(122,16,46,0.12), transparent 35%),
    #080a0c;
  color: #f4f5f6;
  line-height: 1.5;
}

.tool-page {
  width: 94%;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 0 56px;
}

.back-link {
  color: #8f9499;
  text-decoration: none;
  font-size: 0.85rem;
}

.eyebrow {
  color: #d40012;
  letter-spacing: 1.5px;
  font-size: 0.9rem;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 24px;
}

.hero {
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(1.15rem, 3vw, 1.95rem);
  line-height: 1.12;
  margin-bottom: 10px;
  font-weight: 700;
  max-width: 100%;
  letter-spacing: -0.5px;
}

.hero-text {
  color: #a7adb4;
  font-size: 0.95rem;
  max-width: 620px;
}

.tool-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;

  background:
    linear-gradient(145deg, rgba(24,27,31,0.98), rgba(10,12,14,0.98));

  border: 1px solid rgba(212,0,18,0.35);
  border-radius: 18px;
  padding: 24px;

  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 24px 55px rgba(0,0,0,0.62),
    0 0 35px rgba(212,0,18,0.24);
}

.controls {
  display: grid;
  gap: 16px;
}

.controls::before,
.result-panel::before {
  display: block;
  color: #d40012;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.controls::before {
  content: "Inputs";
}

.field {
  display: grid;
  gap: 7px;
}

label {
  color: #b7bcc2;
  font-size: 0.86rem;
}

input,
select {
  width: 100%;
  background: #07090b;
  color: #f4f5f6;
  border: 1px solid #2b2f34;
  border-radius: 4px;
  padding: 12px 13px;
  font-size: 0.95rem;
  outline: none;
}

input:focus,
select:focus {
  border-color: rgba(212,0,18,0.75);
  box-shadow: 0 0 14px rgba(212,0,18,0.18);
}

button {
  background: linear-gradient(to bottom, #ef0018, #c50015);
  color: white;
  border: none;
  border-radius: 5px;
  padding: 14px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  box-shadow: 0 12px 28px rgba(212,0,18,0.28);
}

.result-panel {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 22px;
  min-height: 180px;
}

.result-label {
  color: #d40012;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.result-panel h2 {
  font-size: clamp(1.25rem, 5vw, 2rem);
  line-height: 1.15;
  margin-bottom: 18px;
}

.details {
  color: #a7adb4;
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
}

.warning {
  color: #ff6b6b;
  font-weight: 700;
  margin-top: 16px;
}

.restriction {
  color: #969ca3;
  font-size: 0.88rem;
  margin-top: 16px;
}

.disclaimer {
  color: #777;
  font-size: 0.82rem;
  margin-top: 18px;
}

.hidden {
  display: none;
}