/* 버튼 */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: var(--radius);
    font-weight: 600; font-size: 15px; border: none; cursor: pointer;
    transition: all var(--transition);
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-ghost { background: transparent; color: var(--text-light); }
.btn-ghost:hover { color: var(--primary); }

/* 카드 */
.card {
    background: var(--bg-white); border-radius: var(--radius-lg);
    border: 1px solid var(--border-light); padding: 28px;
    transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--border); }

/* 컨테이너 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 섹션 */
.section { padding: 100px 0; }
.section-title { font-size: 40px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; }
.section-subtitle { font-size: 18px; color: var(--text-light); margin-top: 16px; line-height: 1.6; }