/* Persentase dominan: merah 70%, putih 20%, hitam 10% */
:root {
  --merah-utama: #b30000;   /* merah gelap */
  --merah-muda: #ff4d4d;    /* aksen merah */
  --putih: #ffffff;
  --abu-muda: #f5f5f5;
  --hitam: #111111;
}

/* Layout dasar */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  background: radial-gradient(circle at top, #ff4d4d 0%, #b30000 40%, #4d0000 100%);
  color: var(--putih);
  min-height: 100vh;
}

.wrapper {
  max-width: 900px;
  margin: 20px auto;
  padding: 16px;
}

/* Header & Footer merah kuat + teks putih */
.header,
.footer {
  text-align: center;
  margin-bottom: 16px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.header h1 {
  font-size: 1.8rem;
  margin-bottom: 6px;
}

/* Kartu form (background cenderung putih/abu supaya mudah dibaca) */
.card {
  background: linear-gradient(135deg, var(--putih) 75%, #ffe5e5 25%);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
  border-left: 6px solid var(--merah-utama);
  color: var(--hitam); /* teks hitam dominan di dalam kartu */
}

.card h2 {
  margin-bottom: 10px;
  color: var(--merah-utama);
}

/* Form group */
.form-group {
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
}

.form-group-inline {
  margin: 8px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.form-group label {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--hitam);
}

/* Input, select, textarea */
input[type="text"],
select,
textarea {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid #cccccc;
  font-size: 0.95rem;
  background-color: var(--abu-muda);
  color: var(--hitam);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

input[type="text"]::placeholder,
textarea::placeholder {
  color: #777777;
}

input[type="text"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--merah-utama);
  box-shadow: 0 0 0 2px rgba(179, 0, 0, 0.3);
  background-color: var(--putih);
}

/* Checkbox & radio */
input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--merah-utama);
}

/* Tombol */
.button-group {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.btn {
  border: none;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--merah-utama), var(--merah-muda));
  color: var(--putih);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #cc0000, #ff6666);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--hitam);
  color: var(--putih);
}

.btn-secondary:hover {
  background: #333333;
  transform: translateY(-1px);
}

/* Responsif */
@media (max-width: 600px) {
  .wrapper {
    padding: 10px;
  }

  .card {
    padding: 14px 12px;
  }

  .header h1 {
    font-size: 1.5rem;
  }
}