:root {
  color-scheme: light;
  --bg: #f4efe6;
  --panel: rgba(255, 255, 255, 0.8);
  --text: #1d1a17;
  --muted: #6b645b;
  --accent: #d94841;
  --accent-2: #a61d24;
  --border: rgba(29, 26, 23, 0.12);
  --shadow: 0 18px 40px rgba(43, 30, 18, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans KR", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(217, 72, 65, 0.12), transparent 30%),
    linear-gradient(180deg, #fbf7ef 0%, var(--bg) 100%);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.05;
}

.lead {
  margin: 12px 0 0;
  max-width: 720px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

.download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 16px 26px rgba(217, 72, 65, 0.22);
  white-space: nowrap;
}

.notice,
.tips,
.step {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
}

.notice {
  margin-top: 18px;
  padding: 18px 20px;
}

.notice strong,
.tips h2,
.step-num {
  color: var(--accent-2);
}

.notice p,
.tips li,
.step p {
  color: var(--muted);
  line-height: 1.65;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.step {
  overflow: hidden;
}

.step img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.step-body {
  padding: 18px 18px 20px;
}

.step-num {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.step h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.step p {
  margin: 0 0 8px;
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(217, 72, 65, 0.12);
  color: #8d1b20;
}

.tips {
  margin-top: 18px;
  padding: 22px 22px 10px;
}

.tips ul {
  margin: 0;
  padding-left: 20px;
}

.tips li {
  margin-bottom: 10px;
}

@media (max-width: 960px) {
  .hero {
    flex-direction: column;
    align-items: start;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step img {
    height: 220px;
  }
}