:root {
  --bg-soft: #e8edf8;
  --card-bg: #f5f8ff;
  --ink: #101623;
  --accent: #0b4c91;
  --panel-border: #10518f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Nunito", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 10%, #ffffff 0%, #eef2fa 34%, transparent 60%),
    radial-gradient(circle at 85% 0%, #dae7ff 0%, transparent 40%),
    linear-gradient(160deg, #f4f7ff 0%, #e8eef9 100%);
}

.page-wrap {
  width: min(1180px, 100% - 2rem);
  margin: 2rem auto;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.controls,
.preview {
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(4px);
  box-shadow: 0 16px 34px rgba(15, 41, 82, 0.08);
}

.controls {
  padding: 1.3rem;
}

.controls h1 {
  margin: 0;
  font-family: "Manrope", "Trebuchet MS", sans-serif;
  font-size: 1.3rem;
}

.controls p {
  margin: 0.75rem 0 0;
  line-height: 1.4;
}

label {
  display: block;
  margin-top: 1rem;
  margin-bottom: 0.4rem;
  font-weight: 700;
}

input[type="url"] {
  width: 100%;
  border: 2px solid #cad9ef;
  border-radius: 12px;
  padding: 0.75rem 0.8rem;
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease;
}

input[type="url"]:focus {
  border-color: var(--accent);
}

.btn-row {
  display: flex;
  gap: 0.65rem;
  margin-top: 1rem;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 0.65rem 0.9rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

#generateBtn {
  background: #0e5cb1;
  color: #fff;
}

#downloadBtn {
  background: #0f213f;
  color: #fff;
}

button:hover {
  filter: brightness(1.08);
}

.status {
  min-height: 1.2rem;
  margin-top: 0.7rem;
  color: #1d2f56;
  font-weight: 700;
}

.preview {
  padding: 1.4rem;
  display: flex;
  justify-content: center;
}

.card {
  width: min(440px, 100%);
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid #dbe5f5;
  box-shadow: 0 10px 30px rgba(16, 35, 71, 0.12);
  padding: 1.2rem 1.1rem 1.25rem;
  text-align: center;
}

.logo {
  width: 90px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.title {
  margin: 0.6rem 0 0.9rem;
  font-family: "Manrope", "Trebuchet MS", sans-serif;
  font-size: 2rem;
  font-weight: 800;
}

.qr-panel {
  border: 4px solid var(--panel-border);
  border-radius: 22px;
  padding: 1.6rem 1rem 1rem;
}

.qr-panel h3 {
  margin: 0;
  font-family: "Manrope", "Trebuchet MS", sans-serif;
  font-size: 2.1rem;
  font-weight: 800;
}

.qr-box {
  width: 300px;
  min-height: 300px;
  margin: 1.1rem auto 1rem;
  display: grid;
  place-items: center;
  background: #fff;
}

.qr-box img,
.qr-box canvas {
  display: block;
}

.steps {
  text-align: left;
  margin: 0.65rem 0 0;
  font-size: 0.86rem;
  line-height: 1.35;
  font-weight: 700;
  padding-left: 1.1rem;
}

@media (max-width: 980px) {
  .page-wrap {
    grid-template-columns: 1fr;
  }

  .title {
    font-size: 1.55rem;
  }

  .qr-panel h3 {
    font-size: 1.7rem;
  }

  .qr-box {
    width: 250px;
    min-height: 250px;
  }
}