:root {
    --primary: #4f46e5;
    --secondary: #4338ca;
    --bg: #ffffff;
    --text: #111827;
    --card-bg: #f9fafb;
}

body { font-family: 'Pretendard', sans-serif; background: var(--bg); color: var(--text); margin: 0; line-height: 1.6; }
.container { max-width: 850px; margin: 0 auto; padding: 0 1.5rem; }

/* 네비게이션 */
.navbar { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px); border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 1000; }
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0 !important; }
.logo a { font-size: 1.25rem; color: var(--text); text-decoration: none; }
.sub-brand { font-size: 0.85rem; color: var(--primary); font-weight: normal; margin-left: 4px; }
.nav-menu { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; align-items: center; }
.nav-menu a { text-decoration: none; color: #4b5563; font-size: 0.9rem; font-weight: 500; }
.nav-cta { background: var(--primary); color: white !important; padding: 0.4rem 1rem; border-radius: 0.4rem; }

/* 본문 및 폼 */
header { padding: 4rem 0; text-align: center; }
h1 { font-size: 2.8rem; margin-bottom: 1rem; letter-spacing: -0.03em; }
.highlight { color: var(--primary); }
.card { background: var(--card-bg); padding: 3rem; border-radius: 1.5rem; border: 1px solid #e5e7eb; }

.form-group { text-align: left; margin-bottom: 1.5rem; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 0.5rem; color: #374151; }
input, select { width: 100%; padding: 0.8rem; border: 1px solid #d1d5db; border-radius: 0.5rem; font-size: 1rem; box-sizing: border-box; }
input:focus, select:focus { outline: 2px solid var(--primary); border-color: transparent; }

button, .button-link { display: inline-block; background: var(--primary); color: white; border: none; padding: 1rem; border-radius: 0.5rem; cursor: pointer; font-size: 1.1rem; width: 100%; text-decoration: none; text-align: center; box-sizing: border-box; transition: 0.2s; }
button:hover { background: var(--secondary); }

footer { text-align: center; padding: 4rem 0; color: #6b7280; font-size: 0.9rem; }